 | Lampanella minima, 21-249 | Ten turriform, marine snail shells. The shells are combinations of brown, grey, and white. A representative sample of the shells has eight whorls, a white color band, and shallow sutures. Ornamentation consists of small ribs that become increasingly smaller approaching the apices. Shallow striations cut the ribs into two nodules. The shells are dextral with an oval shaped aperture and thin lips. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Florida, United States |
 | Bulimulus dealbatus, 21-078 | Eighteen turbinate, terrestrial snail shells. The shells are primarily white, but with varying color bands of white and gray appearing vertically across each whorl. There are five whorls on each shell. The shells are dextral with ""teardrop"" shaped apertures that have a slight fold in the columellar lip of each shell. | Gibbes, Lewis Reeves, 1810-1894; Beadle, Elias Root, 1812-1879;Mazyck, William Gaillard, 1846-1942; Beadle, Elias Root, 1812-1879;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Louisiana, United States |
 | Modulus modulus, 21-212 | Eight trochoid, marine snail shells. The shells are light tan in color with spiraling purple to chestnut dashes. The shells have approximately five whorls that reach a flattened apex. The whorls are covered in very faint nodules that merge to form deep striations on the base of the shells. The shells are dextral with oval-like apertures and slightly open umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Diodora cayenensis, 21-354A | Two patellate, marine limpet shells. The shells are tan in color, with an ivory color inside. Externally, the shells have many radiating ribs. On the top of the shells, there is a subcentral keyhole-like opening, the edge of which is lighter in coloring. Internally, the keyhole-like opening is surrounded by a thick, white layer of shell. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Uniomerus carolinianus, 21-466 | Two freshwater mussel valves comprising one complete specimen. The exteriors are brown to tan in color with visible growth lines,the valves have a small amount of white showing at the umbos due to wear. The hinges are shallow with distinct muscle scars and a wide ventral margin. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Altamaha River, Georgia, United States |
 | Caracolus marginella, 21-176 | Two lenticular, terrestrial snail shells. The shells are off-white in color and have a singular dark purple color band on the body whorl which fades to a chestnut color then to yellow at the apex. The shells have four whorls with very shallow sutures. The umbilici are semi-open. The shells are dextral with ellipse-shaped apertures. Inside the apertures are four denticles. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1818 | Jamaica |
 | Leptodea ochracea, 21-437 | Two freshwater mussel valves (one complete specimen). The exteriors are dark brown to brown with dark green color bands, deep growth lines and striations. The thin periostracum is flaking at the umbos due to wear. The interiors are an iridescent, silver to white color. The shells have deep muscle scars and small hinge teeth. The elliptical shells have rounded posterior and anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Abbeville, Abbeville County, South Carolina, United States |
 | Lampsilis fasciola, 21-458 | Two freshwater mussel valves, one complete specimen. The exteriors are light brown to tan and covered with growth lines and vertial striations. The umbos fade to white due to wear. The interiors are pure white in color, have deep hinge teeth, and subtle muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Hume, William, 1801-1870;Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942, Hume, William, 1801-1870 | 1810 | Tennessee, United States |
 | Elliptio hopetonensis, 21-001 | Thirty-two complete freshwater mussels, sixty-four valves. The exteriors are a deep brown color with a thick periostracum. The interiors are a silver-like, white to purple. The valves are elongated with deep growth lines and striations. | Gibbes, Lewis Reeves, 1810-1894; Couper, James Hamilton, 1794-1866;Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887; Couper, James Hamilton, 1794-1866;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887 | 1810 | Altamaha River, Washington County, Georgia, United States |
 | Stenotrema leai, 21-159 | Two lenticular, terrestrial snail shells. The shells are white and gray in color with five whorls. Ornamentation consists of growth lines in varying shades of gray and tan. The shells are dextral with misshapened, oval apertures which present a denticle that runs parallel with the inner lip. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Lampsilis radiata, 21-342 | Two ellipse shaped freshwater mussel valves, comprising one complete specimen. The exteriors are a tan-green color with dark striations radiating from the posterior. There are also circles, silver in color, near the posterior portions. The interiors of the valves are white with a glossy, slightly iridescent coating. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Lake Saratoga, Saratoga County, New York, United States |
 | Elliptio icterina, 21-430 | Fourteen freshwater mussels, seven complete specimens. The exteriors of the shells vary in color from black-brown, tan, red-brown, to white with visible striae and chipping at the umbo. The interiors of the shells are a pearlescent white with a pink and green sheen. The ventral margins and muscle scars are visible. | Gibbes, Lewis Reeves, 1810-1894; Couper, James Hamilton, 1794-1866;Mazyck, William Gaillard, 1846-1942; Couper, James Hamilton, 1794-1866;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Altamaha River,Georgia, United States;South Carolina, United States |
 | Littorina obtusata, 21-210 | Thirty-nine globose, marine snail shells. The shells range in color from off-white to tan and have approximately four to five whorls that reach a flattened apex. The shells are covered in faint growth lines and striations. The shells are dextral with nearly circular apertures and thickened outer lips. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | New England |
 | Succinea campestris, 21-476 | Three turbinate terrestrial snail shells. The shells are white and cream in color and slightly iridescent. The shells are dextral and covered with transverse striae, each one has four whorls and well-defined sutures. The apertures are tear-drop shaped and are also slightly iridescent internally. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Merdigera obscura, 21-136 | One turbinate, terrestrial snail shell. The shell is light brown with six whorls. The whorls have growth lines with deep sutures separting the whorls. The sutures are darker in color than the rest of the shell. The shell is dextral, with an oval-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Europe |
 | Cerithium sp., 21-244 | Three turriform, marine snail shells. The shells are off-white, tan, and grey in color. The larger shells have seven whorls while the smaller has six. The shells are ornamented with large costae which form a nearly straight line and striae which are identified by brown coloration. The shells are dextral with semi-circular apertures and thin lips. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | Manila, Philippines |
 | Caracolus marginella, 21-332-1 | Caracolus marginella, 21-332. Apertural view with scale bar. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Cuba |
 | Caracolus marginella, 21-332-2 | Caracolus marginella, 21-332. Apertural view of specimen. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Cuba |
 | Caracolus marginella, 21-332-3 | Caracolus marginella, 21-332. Apical view with scale bar. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Cuba |
 | Caracolus marginella, 21-332-4 | Caracolus marginella, 21-332. Apical view of specimen. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Cuba |
 | Caracolus marginella, 21-332 | One lenticular, terrestrial snail shell. The exterior is a light brown with a prominent dark brown band that extends from the aperture through each whorl fading toward the apex. The interior is marked with vertical brown striations that radiate from the apex. The shell is dextral, marked with faint growth lines and light striations, and has an open umbilicus. The aperture has a thickened lip and is semi-circular in shape. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Cuba |
 | Terebra concava, 21-038 | One turriform, marine snail shell. The shell is white in color with ten whorls. Ornamentation consists of raised lines between each whorl, with small nodules sticking up on each line. It is a symmetrically repeating pattern. There is a small hole near the apex of the shell. The shell is dextral with an "oval" shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Monetaria moneta, 21-044 | Two marine, snail shells. Irregular and flattened with calloused edges in a roughly sub-hexagonal in shape. Pale white to dirty beige in color. The aperture is wide with pronounced denticules. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Africa |
 | Cyprogenia stegaria, 21-439 | Two valves comprising one complete freshwater mussel. The exteriors are brown to tan in color with dark green color bands and are covered with growth lines and striations. The interiors are a slightly iridescent, white color with a small amount of silver interior nacre. The shells have a thick periostracum that is flaking due to wear. The circular shaped shells have deep muscle scars, large hinge teeth, and rounded posterior and anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Ringicella ringens, 21-173 | One terrestrial snail shell. The shell is off-white in color with dark brown color bands. The shell has four whorls with very shallow sutures with faint growth lines. The apex of the shell is flattened. The aperture of the shell is semi-circular and facing upward, toward the spire. Inside of the aperture there are denticles. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South America |
 | Trochulus sericeus, 21-139 | Seven lenticular, terrestrial snail shells. The shells are white in color and give the appearance of being somewhat transparent. The shells have approximately six whorls and are covered in tiny hairs and growth lines going around each whorl. The shells are dextral, with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Cyclonaias pustulosa, 21-464 | One freshwater mussel valve. The exterior is heavily textured and dark brown with very deep growth lines accompanied by large nodules. The interior is iridescent with prominent hinge teeth. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Tympanotonos fuscatus, 21-241 | Two turriform, marine snail shells. The shells are dark brown in color. The intact shell has eleven whorls while the damaged shell shows only eight whorls; both have shallow sutures. The shells have thin lips and are adorned with large, upward pointing spines that become smaller as the whorls approach the apices. The shells are dextral with oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | Liberia |
 | Hamiota altilis, 21-457 | Two freshwater mussel valves, one complete specimen. The exteriors are dark brown and white near the umbos where the periostracum is flaking due to wear. Growth lines are also present on the exteriors. The interiors are iridescent and show muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942, White, George Washington, 1802-1887 | 1810 | Etowah River, Alabama, United States |
 | Stagnicola palustris, 21-525 | Two turbinate freshwater snail shells. The shells range from a dull gray to tan in color. The shells are covered in transverse growth lines and have five whorls with distinct sutures. The shells are dextral with oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France |
 | Chaetopleura apiculata, 21-049 | One marine chiton. Consists of eight overlapping shell plates in a light tan color that are surrounded by a dark brown girdle. Bilaterally symmetrical. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1856-03-26 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Acteocina canaliculata, 21-354J | One bulloid, marine snail shell. The shell is ivory in color and has a glossy appearance. The shell has three whorls and shallow sutures, and a short spire. The shell has a long aperture that is wide anteriorly and narrow posteriorly. The shell has thin lips and is dextral. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Lampsilis siliquoidea, 21-433 | Two freshwater mussel valves (one complete specimen). The exteriors are light brown to tan in color, with green color bands. The interiors are an iridescent, silver to white color with shallow muscle scars and small hinge teeth. The shells have silver interior nacre and a thin periostracum that is flaking near the umbos due to wear. The valves are elongated and covered with growth lines and striations. The valves are auriform in shape with rounded anterior and posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Mississippi Drainage |
 | Triodopsis palliata, 21-190 | One lenticular, terrestrial snail shell. Coloration is pale gray with the exterior of the shell covered in distinct striations. The shell is dextral with an oblong-lunate and thinkened basal lip, a depressed heliciform shape, and five whorls. There is a tongue shaped denticle in the parietal wall of the irregularly shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia |
 | Polygyra cereolus, 21-507 | One hundred and sixteen lenticular land snail shells of similar sizes. The shells range from white to tan to brown in color and are simple. The shells have six whorls with deep sutures and are covered in transverse growth lines. The shells are dextral and have oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Key West, Monroe County, Florida, United States |
 | Crassispira fuscescens, 21-137 | One turriform, marine snail shell. The shell is brown in color with white coloration throughout. The shell has approximately seven whorls. The ornamentation consists of an intricate pattern of raised vertical striations and growth lines that run perpendicular to the vertical striations. The shell is dextral with a teardrop shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Cerithideopsis scalariformis, 21-236 | Ten turriform, marine snail shells. The shells are tan to grey in color. A representative sample shows nine whorls with deep sutures. The representative shell is ornamented with growth lines which give the shell a wavy appearance, these lines become smaller and more faint approaching the apex. The shells are dextral with semi-circular apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Key West, Monroe County, Florida, United States |
 | Elliptio folliculata, 21-401B | Sixteen valves comprising seven complete freshwater mussels with two odd valves. The exteriors of the shells range in color from light to dark brown and black. Subtle growth lines appear along the exteriors and the periostracum is flaking off, especially around their umbos. Shallow muscle scars are visible on the interior of the shells, which are iridescent with areas of light brown. The ellipse shaped shells have very small hinge teeth. The shells have rounded anterior edges and pointed posterior edges. The shells are covered with a brown dirt that gives them a rusty appearance. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Abbeville, Abbeville County, South Carolina, United States |
 | Helix auricoma, 21-133 | Seven lenticular, terrestrial snail shells. The shells are white where no periostracum remains and tan in color where periostracum remains. There are approximately five whorls. The shells are dextral with distinctive growth lines and ""D"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Hume, Alexander, 1795-1848;Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Hume, Alexander, 1795-1848;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Gemophos viverratus, 21-296 | One turbinate, marine snail shell. The shell is chocolate brown with white dashed color bands that are tightly wound around the shell. Suturing is very shallow and the apex is missing, at least three whorls present. The shell is dextral with an ovate aperture and short siphonal canal. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Senegal |
 | Epitonium occidentale, 21-046 | Five turbinate, marine snail shells. The shells are white in color with six to eight whorls. The shells have distinct raised, white axial costae on each whorl. Deep sutures separate each whorl. The shells are dextral, with circular shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Viviparus georgianus, 21-265 | Sample of tightly packed cluster of fossilized gastropods cemented with limestone cement. Many in the large cluster are broken and several casts are present where shells once were. One small sample of three shells cemented together and three isolated shells are also present. | Gibbes, Lewis Reeves, 1810-1894; W. Gibbes;Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | St. Johns River, Florida, United States |
 | Amblema plicata, 21-442 | Four freshwater mussel valves (one complete freshwater specimen and two partials). The exteriors are dark brown, brown, and tan in color with and a thick periostracum that is flaking due to wear. The interiors are an iridescent, silver to white nacre. The auriform shaped shells are elongated and covered with growth lines, striations, and pronounced costae. The shells have moderately sized muscle scars, large hinge teeth, and rounded anterior and squared posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Alabama River, Alabama, United States |
 | Marmorana scabriuscula segestana, 21-152 | One lenticular, terrestrial snail shell. The shell is off-white in color with four whorls. The ornamentation consists of growth lines that vary in darkness of color. The shell is dextral with an oval-shaped aperture. The outer lip of the aperture is slightly reflected on the base of the shell. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National de Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sicily, Italy |
 | Gongylostoma elegans, 21-031 | Nineteen turriform, terrestrial snail shells. The coloration varies by whorl from white to gray to light brown. Each shell has eleven whorls with little to no ornamentation. The shells are smooth with tiny vertical striations. The shells are dextral with circular shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Gyroscala rupicola, 21-354K | One turbinate, marine snail shell. The interior of the shell is an ivory color. The exterior of the shell has a base color of ivory with a dark brown bands visible on the body whorl and is with ribs. The shell has seven convex whorls and deep, well-defined sutures. The shell is dextral with an oval shaped aperture and thick lips that are slightly reflected onto the base of the shell. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Globularia sigaretina, 21-333 | One globose, marine snail shell. The shell is off-white in color with a slightly glossy appearance. The shell has six whorls with a very large body whorl. Faint vertical growth lines radiating from the apex cover the shell. The shell is dextral with a tear-drop shaped aperture. The umbilicus of the shell is closed and the inner lip of the aperture is slightly thickened and reflected onto the base. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Grignon, France |
 | Polymita picta, 21-180 | One lenticular, terrestrial snail shell. The shell is a bright yellow color with a dark brown color band spiraling from the flattened apex. The shell has three whorls with extremely shallow sutures and very faint growth lines covering the shell. The shell is dextral with a large oval-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1818 | Cuba |
 | Epioblasma triquetra, 21-392 | Four valves which form two complete freshwater mussel specimens. The valves are tan in color with greenish hues on the exterior and reach a darker brown to black color near the hinges. The exterior of the valves have an angled arch that gives them a triangular shape. Thin striations radiate from the hinges of the valves. The interior of the shells are white in color with a slight pearlescent hue. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Glyphyalinia sculptilis, 21-129 | One lenticular, terrestrial snail shell. The shell is white with approximately five whorls. The shell has growth lines around each whorl. The sutures between each whorl are present but shallow. The shell is dextral, with an oval aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Plicopurpura patula, 21-287 | One turbinate, marine snail shell. The dorsal side is dark gray with brown nodules. The shell has three whorls with majority of the shell being the body whorl which has prominent nodes. The nodules run along the shell with the growth lines. The apertural side is gray and a cream white in color. The inductura is a half peach pink and half dark purple brown. The shell is dextral with a D-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | East Indies |
 | Ladislavella elodes, 21-500 | Six turbinate freshwater snail shells. The shells are gray to tan in color with a slightly reflective appearance. Some of the shells are covered in a dusty brown sediment. The shells have four whorls, transverse growth lines, and deep, well-defined sutures. The shells are dextral with large oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Baltimore, Maryland, United States |
 | Cyclonaias tuberculata, 21-435 | Four freshwater mussel valves (two complete specimens). The exteriors are brown to light brown in color. Deep growth lines, striations, and large nodules cover the exteriors. and a thick periostracum. The thick periostracum is beginning to flake on the umbos and nodules, due to wear. The interiors are an iridescent, silver to pink color. The oval shaped valves have deep muscle scars, large hinge teeth, squared posterior edges and rounded anterior edges. Shells 21-435.3 and 21-435.4 are covered in sand, giving them a moldy appearance. | Gibbes, Lewis Reeves, 1810-1894; Hume, William, 1801-1870;Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Hume, William, 1801-1870;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Otala lactea, 21-154 | One lenticular, terrestrial snail shell. The shell is tan and gray in color with four whorls. The apex of the shell is more gray. There are faint tan color bands and growth lines on the shell. The shell is dextral with an oval-like aperture. The outer lip of the aperture is slightly thicker. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1818 | Valparaiso, Okaloosa County, Florida, United States |
 | Liguus fasciatus, 21-008 | One turbinate, terrestrial snail shell. The shell is white with gray shading. The dextral shell has six whorls with brown sutures and a ""D"" shaped aperture. ""Florida"" is handwritten in pencil on the bottom whorl on the dorsal side of the shell near the aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Florida, United States |
 | Littoraria irrorata, 21-354P | One turbinate, marine snail shell. The shell is tan to ivory in color, with a white color inside. The shell has brown streaks. The shell is covered with growth lines and striations. The shell has five whorls and shallow, well-defined sutures. The shell has an oval shaped aperture, and thin lips. The shell is dextral and has a pointed apex. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Charleston Neck, Charleston County, South Carolina, United States |
 | Quadrula quadrula, 21-432 | Three freshwater mussels, (one complete specimen and one valve). The exteriors are dark brown with striae and nodules. The interiors are a pearlescent white with visible wide ventral margins and muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Blanding, William, 1773-1857;Mazyck, William Gaillard, 1846-1942; Blanding, William, 1773-1857;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Streptartemon deformis, 21-253 | Two lenticular, terrestrial snail shells. The shells are light brown in color, are absent of typical ornamentation and are instead smooth and glass-like on the surface. The shells are dextral and have five whorls, which become bulbous approaching the semicircular apertures. The lips of the shells are thin and do not reflect onto the shells' bodies. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Demerara River, Guyana;Brazil |
 | Gonidea angulata, 21-350 | Ten ellipse-shaped freshwater mussel valves, comprising five complete specimens. The exterior of the valves is very dark brown to dark green with thick growth lines radiating from the hinge. There are areas of a lighter tan color near the hinge. The interior of the shell is off-white to light green in color with an iridescent hue. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Calaveras River, Calaveras County, California, United States;Tuolumne River, Tuolumne County, California, United States |
 | Ptychobranchus fasciolaris, 21-395 | Two valves that form one complete freshwater mussel specimen. The vavles are light brown in color with spots of darker brown spread across their exterior. The valves reach a white color on their hinges, and are also covered in thin horizontal growth lines that radiate from the hinges of the valves to their edges. The interior of the shells are white in color with a pearlescent hue. | Gibbes, Lewis Reeves, 1810-1894; Hume, William, 1801-1870;Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Hume, William, 1801-1870;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Physella gyrina, 21-499A | Two turbinate freshwater snail shells. The exteriors are a glossy tan to gray in color and appearance. The shells have four whorls, transverse growth lines and moderately defined sutures. The shells are sinistral with semicircular shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | New England |
 | Akera bullata, 21-113 | Three obovate, marine snail shell fragments. The shells are white and gray in color and extremely fragile. The shells have approximately three whorls. The shells are mostly smooth, with growth lines throughout. The shells are dextral, with elongated, teardrop-shaped apertures. The shells were stored in a paper match box. The box has green sides, a yellow top with an orange sunset, and a green bottom. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Coast of Morbihan, Brittany, France |
 | Mercenaria campechiensis, 21-285 | Two large marine valves, forming one complete bivalve. The valves are a cream, gray, and white in color. Growth lines run horizontally across the valves on both the dorsal and ventral sides. Specimen 21-285.1 has a pinkish red stain on the dorsal side. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Cochlicopa lubrica, 21-496 | Fourteen turbinate terrestrial snail shells. The shells are gray to brown in color and have a very glossy appearance. The shells are dextral with four whorls and deep, well-defined sutures. The shells have teardrop shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Succinea campestris, 21-508 | Ninety-five turbinate, land snail shells of varying sizes. The exteriors are simple and varying shades of beige in color. The dextral lshells have three whorls, distinct sutures, transverse color bands, and oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Hopeton Plantation, Glynn County, Georgia, United States |
 | Lunella torquata, 21-376 | One large lenticular saltwater marine snail shell. The shell light brown, tan, and gray. There are two whorls with visibly deep striae running from the sutures to the outer edge. There appears to be worm casings on the dorsal side. The aperture is dextral and circular shaped. The shell has an open, deep umbilicus. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | Australia |
 | Bothriembryon melo, 21-011 | Two turbinate, terrestrial snail shells. The coloration is white with a grayish hue. There are spots of dark gray across some of the shells. The shells have five whorls each with vertical striations running across each whorl. The shells are dextral with ""teardrop"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Muséum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Australia |
 | Biotocus turbinatus, 21-188 | One trochoid, terrestrial shell. The shell is brown in color. There are four whorls on the shell, with only faint growth lines. The aperture of the shell is dextral and inside there are multiple small denticles. The aperture also has a slightly thicker basal lip. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Brazil |
 | Potamilus purpuratus, 21-441 | Four freshwater mussel valves (two complete specimen). The exteriors are dark brown, brown, and tan in color. The interiors are an iridescent silver, white, and pink color with sharp bumps. Shell 21-441.1 has a large shelf-like bulge on the interior. The shells have silver interior nacre and a thick periostracum that has flaked off most of their exteriors. The elongated shells are elliptical in shape with growth lines and striations. The valves have moderately sized muscle scars, small hinge teeth, and rounded posterior and anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Barratt, John P., 1795-1859;Blanding, William, 1773-1857;Mazyck, William Gaillard, 1846-1942; Barratt, John P., 1795-1859;Blanding, William, 1773-1857;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio River, Louisville, Jefferson County, Kentucky, United States |
 | Echinolittorina ziczac, 21-264 | Sixty-two turbinate, marine snail shells. The shells are gray with a brown to darker gray zig zag vertical striping that gives a zebra like appearance. A representative shell has six whorls with shallow, but distinct sutures. The representative shell, like a few others in this lot, has retained its operculum. The shells are dextral with tear drop shaped apertures and thin lips. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Indian Key, Monroe County, Florida, United States |
 | Melampus bidentatus, 21-037 | Thirteen obovate, terrestrial snail shells. The shells range in color from white to dark gray. There are approximately four whorls on each shell (the number is difficult to determine as the whorls have been worn, over time). The shells are smooth with little ornamentation. Some have vertical striations along the whorls. The interior surface of some shells have raised lines which can be seen in the aperture. The shells are dextral with ""teardrop"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina |
 | Lampsilis radiata, 21-357 | Two valves comprising one complete freshwater mussel specimen. The elliptical-shaped valves are brown to tan in color, with green colored bands. Internally, the valves are iridescent, and are silver to white in color. The valves have silver interior nacre and a thick periostracum. The periostracum on the umbos of the valves is flaking off due to wear. The valves are elongated and are covered with growth lines and striations. The valves have shallow muscle scars and moderately sized hinge teeth. The valves have rounded posterior edges and rounded anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Beadle, Elias Root, 1812-1879;Mazyck, William Gaillard, 1846-1942; Beadle, Elias Root, 1812-1879, Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Canada to Texas |
 | Echinolittorina mespillum, 21-115 | Four globose, marine snail shells. The shells are brown with approximately two to three whorls. The shells have growth lines and small malleations on each whorl. The shells are dextral with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Lampsilis ovata, 21-286 | Two freshwater valves, one complete bivalve. The shells are dark tan with black color bands that radiate from the umbo to the outer edge. The ventral side of the shell is an iridescent pearl white. Specimen 21-286.2 has a paper label adhered to the dorsal side and a label written on the shell on the ventral side. | Gibbes, Lewis Reeves, 1810-1894; Conrad, Timothy Abbott, 1803-1877;Mazyck, William Gaillard, 1846-1942; Conrad, Timothy Abbott, 1803-1877;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Alabama, United States |
 | Elliptio icterina, 21-454 | Six freshwater mussels, three complete specimens. The exteriors are green-brown in color and have subtle growth lines along with vertical striations. The interiors are white to iridescent in coloration. One shell has pink discoloration on the interior. One bivalve is held secured by a delicate string. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Pleurocera canaliculata, 21-518 | One turriform, freshwater snail shell. The shell is tan with transverse growth lines. Sutures form small ledges between the five flat whorls. The dextral shell has a small, irregular oval-shaped aperture. The thin outer lip shows slight damage. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Elliptio hopetonensis, 21-403 | Two valves comprising one complete freshwater mussel. The exteriors of the shells exhibit varying shades of brown to an olive green color. Interiorly, the shells are an iridescent, silver to white color. The shells are covered with growth lines and the periostracum is flaking off of near the umbos. The shells have shallow muscle scars and large hinge teeth. The ellipse shaped shells have rounded anterior edges and squared posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Mercenaria mercenaria, 21-284 | One large marine valve. The dorsal side is reddish-tan, white, and dark brown in color with slightly raised growth lines. The ventral side is cream-white with a purple spot at the ventral margin and noticeable muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Erctella mazzullii, 21-153 | One turbinate, terrestrial snail shell. The shell is off-white in color with four whorls. The ornamentation consists of clearly defined vertical striations. The shell is dextral with a wide, oval aperture. The outer lip of the aperture is slightly reflected. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National de Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sicily, Italy |
 | Tympanotonos fuscatus, 21-240 | One turriform, marine snail shell. The shell is brown with a lighter brown color band just beneath the suture. There are twelve whorls with shallow sutures. The shell is adorned with large protruding nodules on each whorl and clear growth lines giving a wave-like appearance on the surface. The shell is dextral with an oval shaped aperture and a thin lip. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Senegal, Africa |
 | Medora dalmatina, 21-029 | Two turriform, terrestrial snail shells. The shells are white to light brown in color with ten whorls each. The body whorl is brown. One of the shells has been greatly damaged, but the intact shell has deep vertical striations on the body whorl. The shells are dextral with oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Muséum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France |
 | Elliptoideus sloatianus, 21-444 | Four freshwater mussel valves comprising two complete specimens. The exteriors are dark brown to brown in color with thick periostracum that is flaking near the umbos due to wear. The interiors are an iridescent, silver to white color with silver interior nacre. The elongated shells are covered with growth lines, striations, and pronounced costae. The ""elephant ear"" shaped shells have moderately sized muscle scars, moderately sized hinge teeth, rounded anterior edges and pointed posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Lucerna lamarckii, 21-157 | Two lenticular, terrestrial snail shells. The shells are tan in color with four whorls. Growth lines, light striations, and very shallow sutures are present. The shells are dextral with an elongated, oval aperture. The outer lip of the aperture is slightly reflected and two denticles are present within the inner lip. The interior of the aperture and the lips have a glossy finish. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Jamaica |
 | Scaphander lignarius, 21-128 | One bulloid, marine snail shell. There are no whorls on this shell. The shell is tan, with a border of white around the outside. The growth lines are dark red and brown. The inside of the shell is white. The shell is dextral, with an elongated teardrop-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | Irish Sea |
 | Sayella fusca, 21-494 | Six turbinate marine snail shells. The exteriors are a glossy tan in color and appearance with some shells having darker color streaks. The shells have four to five whorls, deep well-defined sutures, and are covered in transverse growth lines. The shells are dextral with semi-circular shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | New York Bay |
 | Valvata sincera, 21-547 | Seven minute, lenticular freshwater snail shells. The exteriors are white and covered with transverse growth lines. The shells have two whorls, deep sutures, and open umbilici. The dextral shells have rounded apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Vermont, United States |
 | Chama pacifica, 21-416 | One marine saltwater valve. The shell is tan in color with raised and rigid costae on the dorsal side. The ventral side is also tan. There are visible muscle scars, and the pallial line is also visible. The ventral margin has a prominent ridge around it. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | East Indies |
 | Amphibola crenata, 21-540 | Two trochoid snail shells that are marine and terrestrial. The exteriors are dull and gray to brown in color. Internally, the shells are tan to brown. The shells have three to four whorls, deep, well-defined sutures, and are covered with slightly raised transverse growth lines. The dextral shells have oval shaped apertures and slightly open umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Australia |
 | Eurynia dilatata, 21-462 | Nine freshwater valves, four complete specimens and one unpaired valve. The exteriors are dark brown to tan in color with visible growth lines and vertical striations. The interiors are iridescent with visible muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Littorina saxatilis, 21-112 | One turbinate, marine snail shell. The shell is off-white and tan with four whorls. The shell has raised striations on each whorl and growth lines near the apex. The shell is dextral and has an oval-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Epitonium angulatum, 21-045 | Nine turbinate, marine snail shells that are white to tan in color. Each shell has six to eight whorls. Distinct ornamentation is found on each of these shells. The ornamentation consists of deep sutures, which separate the whorls. The whorls only touch where the white axial costae cross the suture to the next whorl. The costae numbers vary along each whorl. The shells are dextral, with an ""oval"" shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1857-01 | Oaks Island, Waccamaw River, Georgetown County, South Carolina, United States;Sullivan's Island, Charleston County, South Carolina, United States |
 | Spisula solidissima, 21-428 | Eight saltwater clam valves. Six of the valves pair to make their original bivalve form with two unmatched valves remaining. The exterior coloring varies from a creamy-white, to a dark tan, and a peachy-pink (21-428.1). Striae are also visible on the exteriors. The interiors of the shells are a creamy-white with visible ventral margins and muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Brumby, Richard Trapier, 1804-1875;Mazyck, William Gaillard, 1846-1942; Brumby, Richard Trapier, 1804-1875;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Gulf of Mexico |
 | Lampsilis cardium, 21-277 | Ten valves forming five complete freshwater mussels. The exteriors are light brown with dark blue/black color bands that radiate from the umbo to the outer edge of the shells. Growth lines are visible. The interiors are iridescent white, pink, and green with visible muscle scars. The smallest specimen remains complete and sealed. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887 | 1810 | Ohio River, Louisville, Jefferson County, Kentucky, United States |
 | Ariophanta laevipes, 21-170 | One lenticular, terrestrial snail shell. The shell is off-white to slightly tan in color with chestnut color bands and five whorls. There is a dark black spot near the apex of the shell and faint growth lines. The shell is sinistral with a lunate and diagonal aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Himalaya |
 | Epitonium multistriatum, 21-354Q | One turbinate, marine snail shell. The shell is tan in color, with brown colored bands, and with an ivory color inside. The shell is covered with ribs. The shell has seven whorls and deep, well-defined sutures. The shell has an oval shaped aperture, and thick lips that are reflected onto the base of the shell. The shell is dextral and has a pointed apex. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Naticidae (indeterminate), 21-348 | Twenty-one globose, marine snail shells. The shells are off-white to light tan in color and have faint darker striations with slight growth lines. Closer to the apex the striations become deeper and more defined. The shells are dextral with four whorls. The apertures of the shells are tear-drop shaped and the umbilici are calloused but partially open. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Chlorostoma argyrostomum, 21-290 | One lenticular, marine snail shell. The shell is dark gray to nearly black in color with four whorls and slightly raised striae appearing vertically up the whorls. A black band (possibly a stain) appears on the body whorl. The apertural side is cream and dark purple with and emerald green spot at the closed umbilicus. The shell is dextral with a ""D"" shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | China Seas |
 | Diloma nigerrimum, 21-537 | One globose, marine snail shell. The exterior is gray near the aperture and gradually transitions to tan nearing the apex, likely due to wear. Internally, the shell is cream with an iridescent sheen. The shell has five whorls and is covered in striae that run vertically around each whorl. The dextral shell has a rounded aperture, a thin outer lip, and a thick inner lip. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Chile |
 | Chama florida, 21-109 | Three patellate, salt water clam valves. Coloration is white and gray with small spots of pink and purple around the beak and exterior of the shells. Ornamentation includes raised striae or evidence of previously existing raised striae along the growth lines. Contributed by Mr. C. Gibbes. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Morum oniscus, 21-295 | Two obconical, marine snail shells. The shells are a creamy off-white with small specks of orange and brown closer to the lip of the shell. Very fine growth lines are visible along with nodules that run vertically up the body whorls of the shells. The apertures are elongated and both have small fragments of debris stuck in them. The smallest specimen is missing the apex but the other specimen appears to have three whorls. The shells are dextral with a long narrow aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Utterbackiana couperiana, 21-409 | Twenty valves comprising ten complete freshwater mussels. The shells are medium to dark brown and an olive green color. The periostracum is beginning to flake off of the shells at the umbos. Subtle growth lines are present on the exterior of the shells. Internally, the shells are an iridescent, silver to white color. The shells have very shallow muscle scars and no visible hinge teeth. The ellipse shaped shells have rounded anterior edges and rounded posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States;South Carolina, United States |
 | Melampus coffea, 21-535 | Three turbinate, terrestrial snail shells. The exteriors are tan with beige color bands and is slightly reflective. Internally, the shells are cream. The shells have six whorls, shallow sutures, and are covered with transverse growth lines. The dextral shells have slit-shaped apertures. Large teeth are visible inside the shells' apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Florida, United States |
 | Cerion incanum, 21-026 | One turriform shell of a salt tolerant terrestrial snail. Dextral with ten whorls and faint growth lines. The shell is greyish-white with a single small parietal lamina visible in the aperture. The aperture is auriform in shape. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Key West, Monroe County, Florida, United States |
 | Mesodon normalis, 21-448 | Two trochoid terrestrial snail shells. The exteriors of the shells are tan in color and have a dull appearance. The interiors of the shells have a reflective appearance and are a slightly iridescent cream color. The very thin shells have well-defined sutures and are covered with transverse growth lines. (The damaged shell is especially thin.) The periostracum of the intact shell is flaking near its apex and its lip due to wear. The intact shell has six whorls,an oval shaped aperture and a broad, flat lip that is reflected onto its base. A single wide, bump-like tooth can be found on the columellar margin of the intact shell's aperture. The shells are dextral. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Pendleton, Anderson County, South Carolina, United States |
 | Physa fontinalis, 21-562 | Ten turbinate freshwater snail shells. The exteriors are transparent, reflective and white to cream in color. The shells have three whorls, deep, well-defined sutures, and transverse growth lines. The sinistral shells have oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Birkenhead, Merseyside, England, United Kingdom |
 | Camaena cicatricosa, 21-160 | Two lenticular, terrestrial snail shells. The shells are tan in color with four whorls. Growth lines and striations cover the shells. The outer lip of the shells are thicker and reflected on the body whorl. The shells are sinistral with large, oval apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | China |
 | Merdigera obscura, 21-030 | Eight turbinate, freshwater snail shells. Coloration is light brown. Each shell has six whorls and little to no ornamentation. The shells are relatively smooth, semi-transparent, and dextral with oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Pyganodon grandis, 21-352 | Four valves comprising two complete freshwater mussel specimens. The valves are brown to green in color, with an iridescent, silver to white color inside. The valves have silver interior nacre and a thick periostracum. The periostracum is beginning to wear off of the shells. The valves are elongated and are covered with growth lines and striations. The valves have shallow muscle scars and very small hinge teeth. The shells are elliptical in shape and have pointed posterior edges and rounded anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Mississippi, United States |
 | Mactromeris polynyma, 21-447 | Six saltwater clam valves, three complete clams. The exteriors are light brown to tan in color with a thin periostracum that is flaking due to wear. The interiors are a slightly iridescent, white color with a small amount of silver interior nacre. The ellipse shaped shells are elongated and are covered with growth lines and striations. The shells have very shallow muscle scars, small hinge teeth, pointed anterior edges and rounded posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | New England |
 | Liguus fasciatus, 21-171 | Five turbinate, terrestrial snail shells. The shells are white in color with a glossy exterior. The shells have thin color bands that range from green to light brown closer to the apices. The shells have seven whorls, growth lines, and striations. The shells are dextral with oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Florida |
 | Tricolia pullus, 21-571 | Two turbinate marine snail shells. The exteriors are a cream and covered with red dots (which make them appear red). The interiors are white. The shells have four whorls, transverse growth lines and deep, well-defined sutures.The dextral shells have oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | East Indies;Mediterranean Sea |
 | Vermicularia pellucida, 21-106 | Five spiraled marine, snail shells. The color of the shells vary from off-white to tan and light brown. Each shell has a unique, irregular, spiraled growth pattern. The shells are dextral with small, almost circular, apetures. Growth lines and light striations mark the shells. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Phasianella sp., 21-293 | Two large opercula. The opercula are a creamy off-white and tan in color. On the dorsal side there are growth lines and a small raised whorl. The ventral side is lighter in color with a more glossy sheen to it. There are no growth lines visible. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Obovaria unicolor, 21-473 | Two freshwater mussel valves comprising one complete specimen. The exteriors are dark brown to grey and white due to flaking all over the exteriors. There are visible growth lines where there is no flaking. The interiors are creamy white and 21-473.2 has a historic notation written on the ventral margin. Both valves have deep hinges, visible muscle scars, and wide ventral margins. | Gibbes, Lewis Reeves, 1810-1894; Hume, Alexander, 1795-1848;Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Hume, Alexander, 1795-1848;Mazyck, William Gaillard, 1846-1942;Walker, Bryant, 1856-1936 | 1810 | Tennessee, United States |
 | Turbo castanea, 21-288 | Two marine snail shells. The shells are ovate to conic in shape with three to four whorls. The coloring consists of orange, brown and off-white. Both shells have growth lines and small nodules that run in the same direction. The shells are dextral with nearly circular apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Florida;West Indies |
 | Potamilus alatus, 21-404 | Six valves comprising three complete freshwater mussels. The shells are dark brown to black in color with growth lines covering the exteriors of the shells. Shallow muscle scars are visible on the interiors of the shells, which are iridescent and light pink in color. The periostracum on the shells is flaking off, especially around their umbos. The triangle shaped shells have rounded anterior edges and rounded posterior edges. The shells have large winged shaped shelves near their umbos. | Gibbes, Lewis Reeves, 1810-1894; Blanding, William, 1773-1857;Mazyck, William Gaillard, 1846-1942; Blanding, William, 1773-1857;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Mississippi Drainage |
 | Thiara amarula, 21-529 | Two turbinate, freshwater snail shells. The exteriors are brown to dark brown and dull in appearance. Internally, the shells are cream slightly iridescent. The shells have four whorls, deep, well-defined sutures, and are covered with transverse growth lines and slightly reflective spines. The dextral shells have oval-shaped apertures, slightly reflected white lips, and depressed apices. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Madagascar |
 | Helix auricoma, 21-134 | Seven lenticular, terrestrial snail shells. The shells are tan in color where the periostracum remains. The areas where the periostracum has flaked off are lighter in coloration. There are approximately four whorls on each shell. The ornamentation consists of growth lines and deep striations on each whorl which appear much darker as the periostracum remains in the grooves. The shells are dextral, with ""D"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Ravenel, Edmund, 1797-1871 | 1863 | Cuba |
 | Ellipsaria lineaolata, 21-345 | Six rounded triangular shaped freshwater mussel valves comprise three complete specimen. The exterior of the valves are an olive-brown color with dots of black. The exterior also exhibits growth lines and striations which radiate from the hinge. The interiors of the shells are white with a faint glossy iridescent hue. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Neritina virginea, 21-374A | Two lenticular saltwater marine snail shells. The shells have color bands that are black and dark purple, the purple is more toward the apices. There are white spots running from the body whorls to the apices. There are four whorls with shallow sutures. The apertural side is white. The aperture is dextral and "D" shaped. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Brazil |
 | Liguus fasciatus, 21-172 | Fourteen turbinate, terrestrial snail shells. The shells are off white in color with very detailed ornamentations. Thin green color bands wrap around the shells and fade approaching the apices. Darker chestnut-colored bands accompany the sutures to the apices on the shells. Gray-purple stripes run vertically down the shells and perpendicular to the color bands. Dashes of light purple are found across the shells. The shells are dextral with seven whorls and oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Elliptio congaraea, 21-450 | Five freshwater mussels, two complete and one partial speicmens. The exteriors of the shells are brown to light brown in color. The interiors of the shells are slightly iridescent, silver to white color. The shells have a small amount of silver interior nacre and a thin periostracum. The periostracum on the umbos of the shells is flaking off due to wear. The ellipse shaped shells are elongated and are covered with growth lines and striations. The valves have moderately sized muscle scars, small hinge teeth, rounded anterior edges and pointed posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Anderson, Anderson County, South Carolina, United States |
 | Drymaeus (Mesembrinus) vincentinus, 21-002 | Three turbinate, terrestrial snail shells. One shell is faded, one shell is white, and one has well-preserved coloration each has six whorls. The two shells with coloration: each whorl has two brown color bands with equal thickness on a white shell. The third shell is white with no coloration. All three shells are dextral, with a ""D"" shaped aperture. A small, circular, paperboard box with a lid that is painted red on the sides. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Lithasia armigera, 21-564 | One turbinate freshwater snail shell. The exterior is varying shades of brown. The periostracum on the shell's apex and nodules is worn leaving areas of white. The interior is cream. The shell has five whorls, shallow, well-defined sutures, transverse growth lines, and is covered with large nodules. The shell appears to have large plates that form its construction, hence the common name "Armored rocksnail." The dextral shell has an oval-shaped aperture with lips that are slightly reflected onto the base of the shell. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Lyonsia hyalina, 21-328 | Six marine valves. The shells are an off-white color with darker spots near the edges of the shells and appear to be almost translucent near the hinges. The valves are covered in grooves that thicken as that radiate toward the edges of the shells. The beak of the shells is off centered and are surrounded by a faint iridescent color. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Massachusetts, United States |
 | Melampus coffea, 21-534 | Two turbinate terrestrial snail shells. The exteriors are beige and are slightly reflective. The shells have six whorls, shallow sutures, and are covered in transverse growth lines. The dextral shells have slit-shaped apertures. Small teeth are visible inside the shells' apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Key West, Monroe County, Florida, United States |
 | Macroceramus pontificus, 21-138 | Two turriform, terrestrial snail shells. The coloration is white with gray hues. There are approximately seven whorls. The shell has a rounded apex and deep growth lines on each whorl. The sutures are darker in color than the rest of the shell. The shells are dextral with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Key West, Monroe County, Florida, United States |
 | Elliptio arctata, 21-471 | Twenty-one freshwater mussel valves comprising ten complete and one incomplete specimens. Specimen 21-471-18 is in three pieces. The exteriors are grey and brown with visible growth lines. Some of the specimens have white at the umbos due to flaking. The interiors of the valves are iridescent white and tan. The hinges are shallow and there are slightly visible muscle scars and wide ventral margins. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Abbeville, Abbeville County, South Carolina, United States |
 | Cittarium pica, 21-420 | Three lenticular, saltwater snail shells. A zigzag pattern appears both on the dorsal and ventral sides of the shells. The pattern appears to be faded to varying shades of gray dorsally, but remains black ventrally. There is a distinct lack of pattern nearing the aperture on the ventral side of the shell where the coloration is white to tan. The shells are dextral and have open umbilici. The apertures are circular in shape with simple lips. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Planorbarius corneus, 21-548 | Two involute freshwater snail shells. The exteriors are brown, slightly reflective, and covered with transverse growth lines. Internally, the shells are cream. The shells have three to four coiled whorls, deep sutures and the basal side is deeply depressed. The sinistral shells have semicircle shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Europe |
 | Bolma rugosa, 21-291 | One lenticular, marine snail shell. The shell has four whorls and the coloration consists of an iridescent cream color with a pink and green sheen. Dorsal ornamentation consists of raised striae along the outer edge of the whorls with a line of nodules just above the striae. The apertural side has raised striae that wrap around a completely closed umbilicus and is slightly at a raised angle toward the aperture. The shell is dextral with a circular shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cape of Good Hope, Western Cape, South Africa |
 | Cornu apertus, 21-150 | Three globose, terrestrial snail shells. The shells are light brown in color and have three whorls each. The body whorls are significantly larger than the others. The shells are smooth overall, with growth lines on each whorl and lighter bases. The shells are dextral with wide, oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sicily, Sicily, Italy |
 | Helicigona lapicida, 21-156 | Two lenticular, terrestrial snail shells. The shells have four whorls and are off-white to tan in color with dark vertical color bands that stretch from the apex to umbilicus. The shells are dextral with oval shaped apertures. The inner lip is slightly reflected on the base on the shells. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Europe |
 | Clausilia laminata, 21-023 | Thirteen turriform, elongate, terrestrial snail shells. The coloration is light gray to a dirty white. High spired, the shells have eleven whorls each. There is no noteworthy ornamentation on the shells. The shells are sinistral with "oval" shaped apertures. There are multiple denticles within the aperture of the shell, and a weak palatal callus. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Polymita muscarum, 21-187 | Five lenticular, terrestrial shells. The shells have three whorls and a glossy appearance. Coloration consists of an off-white color with dark brown and tan color bands. Dark brown spots give some of the shells ornamentation. A spot of pink appears inside the aperture on the base. The shells are dextral with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Crepidula plana, 21-354B | One marine snail shell. The shell is ivory to tan in color, with a slightly iridescent, ivory color inside. Externally, the shell has patches of brown color. The shell is oval in shape, flat, and slightly concave, with a pointed apex. The shell has an interior shelf-like deck that is slightly convex. This deck covers about half of the aperture. Externally, the shell is covered with growth lines and striations. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Solariella obscura, 21-553 | One turbinate marine snail shell. The exterior is tan and slightly reflective. Internally, the shell is cream. The shell has three whorls, deep, well-defined sutures, and raised spiral lines. The dextral shell has a rounded aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Massachusetts, United States |
 | Cyclonaias tuberculata ,21-434 | Six freshwater mussel valves, three complete specimens. The exteriors are dark brown to brown in color with deep growth lines, striations and large nodules. The interiors have an iridescent, silver to pink color. The shells have silver interior nacre and a thick periostracum. The periostracum is flaking on the shells' umbos and nodules due to wear. The shells have deep muscle scars and large hinge teeth. The shells are oval shaped with squared posterior edges and rounded anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio River, Ohio, United States;Wabash River, United States;Michigan, United States |
 | Elliptio lanceolata, 21-460 | Six freshwater mussel valves, three complete specimens. The exteriors are dark brown fading to white near the umbos due to wear. Subtle growth lines also appear on the exterior. The interiors are iridescent and white with visible muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Melampus bidentatus, 21-531 | Ten turbinate, terrestrial snail shells. The shells are brown to tan in color. The shells are slightly reflective. The shells have four whorls, shallow sutures, and are covered with transverse growth lines. The dextral shells have slit shaped apertures. Small teeth are visible inside the shells' apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Mercenaria mercenaria, 21-413 | Two valves forming one complete saltwater clam. The valves are thick, sub-ovate or triangular shells are dark gray to a reddish-tan in color on the exteriors. Growth lines are also visible on the exteriors. The interiors of the shells are an iridescent white with matching purple to violet on one margin of each valve. The ventral margin is wide and there are visible muscle scars. Three cardinal teeth are present in each valve. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Crepidula convexa, 21-294 | One marine snail shell. The shell is dark brown in color with small white spots on the dorsal side. The septum is small and only takes up about one fourth of the shells aperture. The shell itself is ""teardrop"" shaped and the aperture is ""oval"" like. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Cistula catenata, 21-132 | One trochoid, terrestrial snail shell. The shell has four whorls and is off-white in color. The ornamentation includes dark brown dashed lines surrounding the whorls. The whorls are separated by deep sutures. The shell is dextral, with a circular aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Mercenaria campechiensis, 21-477 | Two valves comprising one complete saltwater clam. The shells are opaque beige and gray in color. The valves are triangular shaped and have a thick periostracum with visible striae. The interiors of the valves are beige with visible worm castings taking up large portions of the interiors. The valves have deep hinges, prominent hinge teeth but a shallow ventral margin. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Turbonilla interrupta, 21-048 | Twelve turbinate, marine, fossil snail shells. The shells are white and tan in color. The shells appear to have between six to ten whorls. There are subtle sutures separating each whorl. Each whorl exhibits vertical, slightly raised costae that travel around the outside of each whorl. The shells are dextral, with ""teardrop"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Wando River, Charleston County, South Carolina, United States |
 | Physella heterostropha, 21-563 | Eleven turbinate freshwater snail shells. The shells are beige on the exteriors and interiors. The exteriors are also reflective. The shells have four whorls, deep, well-defined sutures, and transverse growth lines. The sinistral shells have oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sulphur Springs, Tampa, Hillsborough County, Florida, United States |
 | Elliptio dariensis, 21-436 | Six articulated freshwater clam valves (three complete specimens). The exteriors are dark brown in color with visible growth lines and areas of iridescent white at the umbo and chipped areas. The interiors are an iridescent white with visible muscle scars and ventral margins. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Helix discolor, 21-155 | One lenticular, terrestrial snail shell. The shell is tan in color with three whorls and growth lines around each whorl. The shell is dextral with an oval-shaped aperture. The outer lip of the aperture is thicker and reflected back on the body whorl. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National de Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Martinique |
 | Crepidula fornicata, 21-370 | One saltwater marine slipper limpet. The shell is light tan in color. The dorsal side has incised sporadic wrinkles with small holes. The ventral portion is the same colo but has no shell decorations. The aperture is ""D"" shaped. On the ventral portion in brown colored ink is ""Crepidula fornicata."" | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Atlantic Coast |
 | Tricolia pullus, 21-570-1 | Tricolia pullus, 21-570. Apertural and dorsal views with scale bar. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | England |
 | Tricolia pullus, 21-570-2 | Tricolia pullus, 21-570. Apertural and dorsal views of specimens. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | England |
 | Tricolia pullus, 21-570 | Five turbinate marine snail shells. The exteriors are beighe and slightly reflective with red-brown color bands. The interiors are cream in color. The shells are covered with striae and transverse growth lines and have deep, well-defined sutures. The dextral shells have oval shaped apertures. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | England |
 | Epitonium novangliae, 21-034 | One turbinate, marine snail shell. Coloration is light brown and white with an orangeish hue. The shell has five whorls with five costae across each whorl. The costae are lighter in color than the shell. There are deep sutures between each whorl. The shell is dextral with a circular aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Ecrobia truncata, 21-550 | Seven extremely minute, turbinate, aquatic snail shells. The exteriors are brown and slightly reflective. The dextral shells have three whorls and tear-drop shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cape Cod, Barnstable County, Massachusetts, United States |
 | Onustus indicus, 21-297 | One patellate, marine snail shell. The shell is light tan and off-white in color with roughly seven whorls. The sutures are extremely shallow. The dorsal side has mellations that follow the whorls. The apertural side has a semi-circular aperture and an open umbilicus. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | China |
 | Potomida littoralis, 21-385 | Four freshwater valves comprising two complete mussel specimens. The shells' exteriors are dark brown in color, reaching white near the hinges. Valves 21-385.1 and 21-385.2 also reach a white color near the edges of the shells. The valves are covered in radiating horizontal growth lines and thin striations. The interior of the shells is a slightly glossy white color. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France, Seine River |
 | Phasianella solida, 21-111 | One turbinate, marine snail shell. The shell is white to tan in color and with five whorls. The shell has growth bands on each whorl and deeps sutures in between the whorls. The shell is dextral with a teardrop-shaped aperture. Contributed by Professor Foreman. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Africa |
 | Elimia catenaria, 21-527 | Fifteen turbinate, freshwater snail shells. The exteriors are brown to tan with a dull appearance. Internally, the shells are cream and are slightly iridescent. The periostracum has flaked off of the apices of the shells. The shells have eight whorls, deep, well-defined sutures, and are covered in nodules and spiral raised lines. The dextral shells have oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Florida, United States;Georgia, United States |
 | Astralium sp., 21-298 | Five opercula. Each operculum has one side that is light tan and glossy with a spiral coloration which gives the appears of a whorl. The alternate side is a dark copper brown and is flat with visible striations. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Zonitoides nitida, 21-186-1 | Zonitoides nitida, 21-186. Apical and basal views with scale bar. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Zonitoides nitida, 21-186-2 | Zonitoides nitida, 21-186. Apical and basal views of specimen. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Zonitoides nitida, 21-186-3 | Zonitoides nitida, 21-186. Shells stored in vial with scale bar. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Zonitoides nitida, 21-186-4 | Zonitoides nitida, 21-186. Shells stored in vial. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Zonitoides nitida, 21-186 | Six lenticular, terrestrial snail shells. The shells are tan in color with darker coloring near the apices. There are four whorls each covered in radial growth lines and the apices are nearly flat. The shells are dextral with oval-shaped apertures and completely open umbilici. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Lampsilis ovata, 21-438 | Two freshwater mussel valves (not from the same specimen). The exteriors are dark brown, brown, to tan in color. The shells have silver interior nacre and a thick periostracum that is flaking from wear near the umbos. The elongated, triangularly shells are covered with growth lines and striations. The shells have moderately sized muscle scars, large hinge teeth and rounded anterior and posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Steromphala cineraria, 21-559 | Five trochoid marine snail shells. The exteriors are grayish brown and the interiors are an iridescent white. The shells have four whorls, shallow sutures, and are covered with tan ribs. The dextral shells have rounded apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Lampsilis fasciola, 21-344 | Five oval shaped marine valves, comprising of two complete specimens. The exteriors are pale green color with dark green striations radiating from the hinge. The interiors are white with a slightly blue iridescent shine. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio River, Ohio, United States |
 | Orthalicus zebra, 21-012 | Three turbinate, terrestrial snail shells. The coloration ranges from dark brown, tan, and white with stripes on all shells. There are color bands of dark brown and light brown running across each whorl. There are vertical striations running across the whorls of all three shells. There are five whorls on shells 21-012.2 and 21-012.3. On the significantly smaller shell 21-012.1, there are only four whorls. The shells are dextral with ""D"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Key West, Monroe County, Florida, United States;Cuba |
 | Novisuccinea ovalis, 21-449 | One turbinate, terrestrial snail shell. The exterior of the shell is beige and the interior of the shell is white both give a glossy appearance. Patches of dirt cover the exterior of the shell. The shell has four whorls with deep, well-defined sutures and is covered with transverse growth lines. The shell is dextral and very thin with a tear drop shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Goose Creek, Berkeley County, South Carolina, United States |
 | Architectonica perspectiva, 21-114 | Four lenticular, marine snail shells. The shells are tan in color with thin brown and white color bands. Brown radiating dashes and growth lines cover the shell, with the same dash pattern on the base and inside of the umbilicus. The shells have approximatley five whorls that reach a flattened apex. The shells are dextral with oval shaped apertures. The umbilici is completely open and there appears to be denticles that wind up the umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Muséum National d'Historie Naturelle;Phillips, John H., 1800-1874; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | Indian Ocean, Pacific Ocean, China Seas;East Indies |
 | Elliptio icterina, 21-451 | Two freshwater mussel valves, one complete specimen. The exteriors are dark to light brown with subtle growth lines, and areas near the umbos where the shell appears white due to flaking of the periostrocum. Muscle scars are visible on the iridescent interiors of the valves. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887 | 1810 | Georgia |
 | Villosa vibex, 21-389 | Five valves in total with four comprising two complete freshwater mussel specimens. The valves are light brown in color and have markings of darker and lighter brown on the exterior of the shells. Growth lines and horizontal striations cover the shell, there are also dashes of green that run horizontal from the hinge. The shells reach a white pearlescent color near the hinge. The interior of the shells are an off-white color with a slightly iridescent hue. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Santee Canal, Berkeley County, South Carolina, United States |
 | Leptodea ochracea, 21-279 | Two valves forming a complete freshwater bivalve. The shells are dark tan in color with sporadic dark brown color bands that run the same direction as the striae. There appear to be very faint, fine dark brown color lines radiating from the umbos on both valves. The interiors are a dull iridescent white with a pink and green sheen (mother of pearl). | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Elimia laeta, 21-542 | One turbinate freshwater snail shell. The exterior is brown and slightly reflective. Internally, the shell is cream in color. The shell has five whorls, shallow sutures, and is covered with spiral-raised lines. The periostracum has flaked off at the apex. The dextral shell has an oval shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Alabama, United States |
 | Cernuella virgata, 21-177 | Four lenticular, terrestrial snail shells. The shells are off-white with darker brown color bands spiraling from the apices. The shells have growth lines, striations, and five whorls which surround semi-open umbilici. The shells are dextral with oval shaped apertures which cover a portion of the umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France |
 | Tegula excavata, 21-551 | One trochoid marine snail shell. The exterior is gray and slightly reflective. The slightly raised color bands give the exterior a rippled effect. Internally, the shell is an iridescent white. The dextral shell has five whorls, an oval shaped aperture, and an open umbilicus. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | United Kingdom, England |
 | Cochlodinella poeyana, 21-028 | Six turriform, terrestrial snail shells. The shells are tan in color and with ten whorls each. There are vertical striations across each whorl on each shell. The shells are dextral with circular apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Cuba |
 | Cerion chrysalis, 21-168 | Twenty-one terrestrial snail shells. Three shells in the lot are trochoid shaped while nineteen are turriform shaped. The shells are off-white and gray in color with nine whorls and raised ribs between each whorl. Some of the shells have darker spots scattered across the ornamentation. The shells are dextral with oval shaped apertures and thick flattened basal and outer lips. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Clanculus pharaonius, 21-561 | Two trochoid marine snail shells. The exteriors are a dull pink and covered with small black and white nodules. The interiors are white. The shells have six whorls and deep, well-defined sutures. The dextral shells have oval shaped apertures, thick apertural lips, and large teeth inside the apertures. | Gibbes, Lewis Reeves, 1810-1894; Foreman, Edward R., 1808-1885;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874; Foreman, Edward R., 1808-1885;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | Red Sea |
 | Alvania beanii, 21-124 | Fifteen turbinate, marine snail shells. The shells are gray in color with approximately five whorls. The shells have growth lines and deep sutures between whorls. The shells are dextral with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Lamlash Bay, North Ayrshire, Scotland, United Kingdom |
 | Margaritifera hembeli, 21-470 | Two freshwater mussel valves comprising one complete specimen. The exteriors are dark brown with visible slightly pronounced growth lines. The interior of the valves is iridescent tan and white with a pink and green sheen. The hinges are shallow and there are small visible muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Louisiana, United States |
 | Phasianotrochus eximius, 21-292 | Two small turbinate, marine saltwater snail shells. The smallest specimen is brown in color and with the larger a grayish-brown. There are approximately five to six whorls per shell with very shallow sutures. The shells are dextral with ""D"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Australia |
 | Leaunio lienosus, 21-387-1 | Leaunio lienosus, 21-387. External views w/scale bar. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Leaunio lienosus, 21-387-2 | Leaunio lienosus, 21-387. External views of specimens. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Leaunio lienosus, 21-387-3 | Leaunio lienosus, 21-387. Internal views w/scale bar. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Leaunio lienosus, 21-387-4 | Leaunio lienosus, 21-387. Internal views of specimens. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Leaunio lienosus, 21-387 | Two freshwater valves comprising one complete mussel. The exteriors of the valves are a dark brown that reaches an off-white color near the hinge. Covering the exteriors of the valves are thin growth lines and radiating horizontal striations. The interior of the valves are a silver off-white color with an iridescent hue. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Smaragdia viridis, 21-538 | One small marine slipper snail shell. The rounded shell is smooth, beige in color with a slight glossy appearance. The shelf covers half of the basal side of the shell. The aperture is a "D" shape and fine teeth are present near the apertural lip. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Elliptio crassidens, 21-472 | Four freshwater mussel valves comprising two complete specimens. The exteriors are dark brown toward the umbos and turn to a lighter brown toward the outer edge. There are visible growth lines and white at the umbos due to wear. The interior of the valves are a matte cream white with deep hinges and distinct muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Georgia, United States |
 | Melampus bidentatus, 21-532 | Three turbinate terrestrial snail shells. The exteriors are beige with brown color bands and are slightly reflective. The shells have six whorls, shallow sutures, and are covered with transverse growth lines. The dextral shells slit-shaped apertures. Large teeth are visible inside the shells' apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Truncatella subcylindrica, 21-107 | Eighteen turbinate, terrestrial adult snail shells. The shells are whitish to gray in color. Each of the shells has three to four whorls. The shells have deep sutures between whorls and growth lines. The shells are dextral, with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Elliptio folliculata, 401A | Sixteen valves comprising six complete freshwater mussels and four additional valves. The shells are light to dark brown and black in color. Subtle growth lines appear along the exterior of the shells. The periostracum is flaking off, especially around the umbos. Shallow muscle scars are visible on the interior of the shells which are iridescent with areas of light brown. The ellipse shaped shells have very small hinge teeth. The shells have rounded anterior edges and pointed posterior edges. The shells are covered with a brown dirt that gives them a rusty appearance. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Abbeville, Abbeville County, South Carolina |
 | Zebrina detrita, 21-010 | Six turbinate, terrestrial snail shells white with a light-brown hue. Shell 21-010.2 is darker. Each specimen has six whorls. Vertical striations appear on each whorl. The shells are dextral with ""teardrop"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Mrs. Paris;Muséum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Mrs. Paris | 1810 | France |
 | Fusconaia subrotunda, 21-346 | Two oval-shaped freshwater mussel valves which comprise one complete specimen. The exterior of the valves are brown to dark brown with black markings and are covered in deep growth lines that radiate from the hinge of the shell. The interior of the shells are white in color with a faint glossy iridescent hue. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Cerion rubicundum, 21-167 | One turriform, terrestrial snail shell. The shell is off-white to gray near the apex and body whorl but transitions a pale orange color near the apex. The shell has nine whorls with vertical ribs on each whorl. The shell is dextral with a semi-circular aperture that has a slightly reflected outer lip. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Pseudosuccinea columella, 21-489 | Four turbinate freshwater snail shells. The exteriors are tan in color, covered with transverse growth lines, and are slightly reflective. The interiors are tan to gray in color and reflective. The fragile shells are very thin and brittle with three whorls, and well-defined sutures. The shells are dextral with tear-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Rhode Island, United States |
 | Urosalpinx cinerea, 21-354L | Two turbinate, marine snail shells. The shells are tan to ivory in color on the exterior with an ivory interior. The shells are covered with growth lines, striations, and ribs. The shell has varices that are light brown in color. Both of the shells have seven convex whorls with deep, well-defined sutures. The shells have oval shaped apertures terminating in a siphonal canal. The shells are dextral with thin lips. The outer lip is fluted. The shells also have pointed apices. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Phasianella australis, 21-565 | One turbinate marine snail shell. The exterior is tan with red and brown color streaks and dark red color bands. The interior is cream in color. The shell is smooth with a slightly dull appearance. The shell has five whorls, deep, well-defined sutures, and is covered with transverse growth lines. The dextral shell has an oval-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Australia |
 | Lampisilis dolabraeformis, 21-276 | Two valves forming a complete freshwater bivalve. The valves are a dark brown, reddish brown, to tan in color. The umbos are white due to wear. There are visible growth lines on both valves. The interiors of the valves are an iridescent white, pink, and green (mother of pearl). | Gibbes, Lewis Reeves, 1810-1894; Couper, James Hamilton, 1794-1866;Mazyck, William Gaillard, 1846-1942; Couper, James Hamilton, 1794-1866;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Altamaha River, Georgia, United States |
 | Lithasia geniculata, 21-543 | Two turbinate, freshwater snail shells. The exteriors are dark tan and dark brown in color. Internally, the shells are white. The shells have three whorls, deep, well-defined sutures, and are covered with transverse growth lines and nodules. The dextral shells have tear-drop shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Alabama, United States |
 | Pleurobema descisum, 21-300 | Eight auriform, freshwater valves, four complete bivalves. The shells are various shades of brown, ranging from dark brown to a dark tan. All of the specimens have a white umbo due to flaking and wear. The inner part of the shell is an iridescent white with a pink and green sheen. Muscle scars and the ventral margin is noticeable. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Alabama |
 | Physella virginea, 21-485 | Four turbinate, freshwater snail shells. The exteriors are tan to gray in color and covered with transverse growth lines. The shells are sinistral, have four to five whorls, well-defined sutures and tear-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tulare Lake, Kings County, California, United States |
 | Janthina janthina, 21-121-1 | Twelve Janthina janthina, 21-121. Apertural and dorsal views with scale bar. Contributed by Professor Harvey. | Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Key West, Monroe County, Florida |
 | Janthina janthina, 21-121-2 | Twelve Janthina janthina, 21-121. Apertural and dorsal views. Contributed by Professor Harvey. | Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Key West, Monroe County, Florida |
 | Janthina janthina, 21-121 | Twenty-one lenticular in total (12 pictured), marine snail shells. The shells are lavender purple and white. The shells have approximately two to three whorls each. Coloration is mostly white on top, but purple underneath. The shells have growth lines and vertical striations. The apertures are mostly ""D"" shaped, but some have intricate curves inside the aperture. Contributed by Professor Harvey. | Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Key West, Monroe County, Florida |
 | Fasciolaria tulipa, 21-411 | Two turbinate, saltwater marine snail shells. The shells have seven whorls with deep sutures. The smaller shell is peach and white (21.411.1) and the larger shell (21.411.2) has tan and white. The color pattern on both shells is the same with the alternating bands of color and white running vertically from the apices to the apertures. The apertures are dextral with an elongated siphonal canal. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Helicina orbiculata, 21-027 | Two trochoid, terrestrial snail shells. The intact shell is white to off-white with five whorls. There is little ornamentation and all whorls are all relatively smooth. The shell is dextral with a "D" shaped aperture. The second shell is in numerous fragments and extremely fragile. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Cyclonaias pustulosa, 21-456 | Two freshwater mussel valves, one complete specimen. The exteriors are dark brown with obvious growth lines and protruding nodules. The periostracum is flaking near the umbos. The interiors are iridescent. The nearly circlular valves have deep and obvious hinge teeth. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Pharus legumen, 21-336 | One complete marine bivalve, though heavily damaged. The shells are an elongated bean shape. The shells are off-white in color with spots of darker brown, periostracum, near the edges. There are faint radiating striations that follow the curvature of the shell that cover the exterior. The interior of the shell is also an off-white color. The posterior and anterior margins of the shells are smooth and rounded. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Phillips, John H., 1800-1874, Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | England |
 | Zonites algirus, 21-169 | One lenticular, terrestrial snail shell. The shell is a tan color darkening to a light brown near the apex. The shell has five whorls with growth lines and vertical striations. The shell is dextral with an oval shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942,Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France |
 | Pleurobema rubrum, 21-362 | Two marine freshwater valves that complete one whole bivalve. The shells are dark brown and white at the umbo and gradually turn to a lighter brown toward the edge on the dorsal side. The ventral portion is a pearlescent white with a pink and green sheen. There are muscle scars present and a wide/ thick ventral margin. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee |
 | Gibbula magus, 21-555 | Four trochoid marine snail shells. The exteriors are dull and range in color from white and beige to varying shades of brown. (21-555.1 has rust color bands.) Internally, the shells an iridescent white. The shells have six whorls, deep, well-defined sutures, and are covered with nodules and spiral raised lines. The periostracum has flaked off of some areas of the shells, revealing a slightly reflective and slightly iridescent material. The dextral shells have oval shaped apertures and open umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Palermo, Sicily, Italy |
 | Orthalicus pulchellus, 21-020 | Five turbinate, terrestrial snail shells. The shells range from tan to dark brown with dark brown color bands and vertical irregular lines. The shells are dextral with ""teardrop"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Paraguay |
 | Abra alba, 21-330 | Five oval shaped marine valves, (includes one complete bivalve). The shells are off-white in color with a pale brown periostracum. The posterior and anterior margins are smooth and rounded. The interiors of the shells are white with a glossy appearance. The shells are marked with faint horizontal growth lines. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Phillips, John H., 1800-1874 | 1810 | Europe |
 | Ophicardelus ornatus, 21-541 | Two turbinate, terrestrial snail shells. The exteriors are slightly reflective and brown. The shells have six whorls, shallow sutures, and are covered with transverse growth lines. The dextral shells have tear-drop shaped apertures in which small teeth are visible. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Australia |
 | Anadara lienosa, 21-283 | One fossil marine valve. The dorsal of the valve is pale gray, white, and light tan in color. The ventral is a reddish tan with prominent muscle scars and very fine striae at the ventral margin. The entire valve is covered in small holes and raised striae radiate from the hinge to the outer lip. Growth lines are more visible near the outer lip. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Lioplax subcarinata, 21-481 | One turbinate freshwater snail shell. The exterior is tan in color with faint brown color streaks, four whorls and deep, well-defined sutures. The shell is dextral with transverse growth lines and a circular aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Oxychilus draparnaudi, 21-146 | Two lenticular, terrestrial snail shells. The shells are off-white and yellowish in color. They appear to be slightly transparent. Each of the shells have five whorls with growth lines. The umbilicus of both shells are open. The shells are dextral with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France |
 | Hippopus hippopus, 21-418 | Two medium sized valves that form one complete saltwater clam. The shells are white and thick with what appear to be sproradic, purple-pink dashed lines. Growth lines appear from the hinge to the outer edge on the dorsal side. There are spines that become more prominent toward the center of the shell. The interiors of each valve are white with jagged edges. There are also two small drilled holes at the hinge. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | East Indies |
 | Lunella torquata, 21-539 | An operculum of a marine snail shell. The glossy exterior has spiral, swirl patterns in tans and browns. The matte interior is beige and is marked with two large spiral raised ribs with nodules. The spaces surrounding the ribs and nodules are covered in sediment. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Triodopsis tridentata, 21-182 | Seven lenticular, terrestrial snail shells. The shells range in color from off-white to differing shades of tan and light brown. The shells have very thin, shallow growth lines and striations on five whorls. The shells have a depressed heliciform shape with flattened apices. The shells are dextral with a rounded triangular-shaped apertures and three denticles present within. | Gibbes, Lewis Reeves, 1810-1894; Foreman, Edward R., 1808-1885;Mazyck, William Gaillard, 1846-1942; Foreman, Edward R., 1808-1885;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Baltimore, Maryland, United States |
 | Calliostoma granulatum, 21-554 | Two trochoid marine snail shells. The exteriors are beige and slightly reflective. The larger shell has a tan color pattern that is especially noticeable from the basal view. The smaller shell has four whorls; the larger shell has six whorls. The shells have shallow sutures and are covered with spiral raised lines. The dextral shells have oval shaped apertures and very sharp apices. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | United Kingdom, England |
 | Crepidula fornicata, 21-041 | six ovate, marine snail shells. The shells are arched with a white septum (ledge) underneath (supports the internal organs) which extends approximately half the length of the aperture. The shells are light pink, but shell 21-041.4 is black with white horizontal streaks. The shells have one whorl and horizontal striations running across each shell. The shells have color bands and the shells are slightly textured. The shells are slightly curved dextrally with a ""D"" shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Tectonatica pusilla, 21-354O | Two turbinate, marine snail shells. The shells are tan to ivory in color, with an ivory color inside. The shells have a glossy appearance. The shells have three whorls and shallow sutures. The shells have oval shaped apertures and thin lips that are reflected onto their bases. The shells are dextral and have blunt apices. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Sullivan's Island, Charleston County, South Carolina, United States |
 | Chondropoma pictum, 21-480 | Two turbinate terrestrial snail shells. The exteriors are tan and light brown in color with brown color bands near the sutures. The shells are covered with transverse growth lines, have very small ribs, four whorls and deep, well-defined sutures. The shells are dextral with semi-circular shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Valvata tricarinata, 21-567B | Five lenticular freshwater snail shells. The exteriors are beige with a dull appearance. The shells have three whorls, deep, well-defined sutures, and transverse growth lines. The dextral shells have rounded apertures and open umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Troy, Rensselaer County, New York, United States |
 | Leptoxis carinata, 21-004 | Five turbinate, marine snail shells. The shells are off-white to light-gray, some having darker color bands. Each shell has five whorls that are separated by carina. The shells are dextral, with "D" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Christian Creek, Augusta County, Virginia, United States |
 | Eutrochatella pulchella, 21-181-1 | Eutrochatella pulchella, 21-181. Shells in pill box with scale bar. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Jamaica |
 | Eutrochatella pulchella, 21-181-2 | Eutrochatella pulchella, 21-181. Shells in pill box. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Jamaica |
 | Eutrochatella pulchella, 21-181-3 | Eutrochatella pulchella, 21-181. Dorsal and apertural views with scale bar. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Jamaica |
 | Eutrochatella pulchella, 21-181-4 | Eutrochatella pulchella, 21-181. Dorsal and apertural views of specimen. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Jamaica |
 | Eutrochatella pulchella, 21-181 | Two trochoid, terrestrial snail shells. The coloration of the shells ranges from off-white to gray with darker spots of gray adding minor ornamentation. The shells have six whorls with small nodules covering the body whorls. Striations cover the entire exterior of the shells with some areas having a slightly thicker peristome. The shells are dextral with oval shaped apertures. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Jamaica |
 | Metanachis jaspidea, 21-147 | Four turbinate, marine snail shells. The shells are white in color. Each shell has approximately four whorls. The ornamentation is faded, but the shells have vertical striations and growth bands on each whorl. The shells are dextral with teardrop-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Amblema plicata, 21-282 | One freshwater valve. The shell is dark brown/black in color with a white umbo. The nacre on the ventral side is an iridescent white, pink, and green (mother of pearl) with a noticeable change at the ventral margin, where it gets slightly more of a tan color. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Alabama, United States |
 | Margaritifera margaritifera, 21-400 | Six valves comprising three complete freshwater mussel specimens. The shape of the valves is an elongated ellipse. The exterior of the valves are black in color but vary in shades near the edges of the valves and near the hinges. On the hinges of the valves the color changes from black to a spotted white color. Along the exterior of the valves there are thin growth lines and striations. The interior of the valves are off-white in color with shades of purple marking them. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Mokelumne River, California, United States |
 | Helminthoglypta tudiculata, 21-505 | One lenticular shell of a land snail. The shell is a tannish/orange in color and is simple. The shell has five whorls with deep sutures and is covered in transverse growth lines. The shell is dextral and has an oval shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1856 | San Joaquin Valley, California, United States |
 | Steromphala umbilicalis, 21-528 | One lenticular, marine snail shell. The exterior is gray to tan with reddish color bands and has a dull appearance. Internally, the shell is white and iridescent. The shell has four whorls with shallow sutures and is covered with transverse growth lines. The dextral shell has a rounded aperture and an open umbilicus. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | England |
 | Cistula catenata, 21-482 | Two turbinate, terrestrial snail shells. The exteriors are cream in color with brown color bands, visible growth lines, and areas covered with a gray sediment. The dextral shells have five whorls, deep, well-defined sutures and circular apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Cuba |
 | Pleurocera clavaeformis, 21-557 | Seventeen turbinate freshwater snail shells. The exteriors are varying shades of brown, with the darker hues near the apices and lighter hues near the apertures. The shells have a slightly reflective appearance and are covered with transverse growth lines. Internally the shells are brown. The shells have five whorls with deep sutures. The dextral shells have oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Turritella leucostoma, 21-093 | One turriform, marine snail shell. Coloration is white with irregular vertical lines in varying colors from pink to tan. The shell has approximately seventeen fairly flat whorls that are separated by sutures which become increasingly shallow toward the apex. There are growth lines on each whorl and vertical striations that crisscross the growth lines. The shell is dextral, with a circular aperture and sharp outer lip. (A small hole is present in the fifth whorl from the aperture.) | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Gulf of California |
 | Oxyloma elegans, 21-164 | Twelve obvate, terrestrial snail shells. The shells are thin, translucent, and pale-yellow color with three whorls. The shells are dextral with large oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Boonea impressa, 21-354M | One turbinate, marine snail shell. The shell is tan to ivory in color, with a tan to ivory color inside. The shell is covered with growth lines and striations. The shell has five whorls and shallow sutures. The shell has a semicircular shaped aperture, and thin lips. The shell is dextral and has a pointed apex. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | White Point, Charleston, Charleston County, South Carolina, United States |
 | Physella gyrina, 21-487 | Three turbinate freshwater snail shells. The shells are tan to gray in color with a glossy appearance. The shells are covered with transverse growth lines, have four whorls, and moderately defined sutures. The sinistral shells are sinistral have semicircular shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Brumby, Richard Trapier, 1804-1875;Mazyck, William Gaillard, 1846-1942; Brumby, Richard Trapier, 1804-1875;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1938 | 1810 | Clear Creek, Morgan County, Tennessee, United States |
 | Valvata tricarinata, 21-567A | Two lenticular freshwater snail shells. The exteriors are a dull beige and dark gray near the apices. The shells have three whorls, deep, well-defined sutures, and are covered with transverse growth lines. The dextral shells have rounded apertures and open umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Vermont, United States |
 | Testudinalia testudinalis, 21-102 | One marine snail shell. The shape is typically patellate with a low dome; however, this specimen has fragmented. The coloration is black and white resembling a tortoise shell pattern. There are fine growth bands (ridges) radiating from the apex. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | New England |
 | Epioblasma brevidens, 21-280 | Three freshwater valves in total; the two smaller shells form a complete bivalve. The shells are auriform in shape and light tan in color. There are light-black thin incised dashed lines that radiate from the umbo and growth lines are visible. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Uperotus clava, 21-383-1 | Uperotus clava, 21-383 with scale bar. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Democratic Socialist Republic of Sri Lanka |
 | Uperotus clava, 21-383-2 | Uperotus clava, 21-383. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Democratic Socialist Republic of Sri Lanka |
 | Uperotus clava, 21-383-3 | Uperotus clava, 21-383 with scale bar. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Democratic Socialist Republic of Sri Lanka |
 | Uperotus clava, 21-383-4 | Uperotus clava, 21-383. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Democratic Socialist Republic of Sri Lanka |
 | Uperotus clava, 21-383 | One marine, rock and wood boring valve. The valve transitions from a narrow point on one end to a wider, rounded point on the opposite end. The exterior of the valve is tan in color with some spots of white and other slight discolorations. | Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Democratic Socialist Republic of Sri Lanka |
 | Phasianella australis, 21-530 | One turbinate, marine snail shell. The exterior is tan to beige and slightly reflective with color bands that are a reddish-brown that form a dashed pattern horizontally around the shell. The interior is cream. The shell has six whorls, deep, well-defined sutures, and is covered with transverse growth lines. The dextral shell has an oval-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle | 1810 | Australia |
 | Elimia caelatura, 21-520 | Five turbinate freshwater snail shells. The exteriors of the shells are a dull brown color with ribs and nodules. The shells have three to five flat whorls with sutures that form small ledges between the whorls. The shells are dextral with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Alabama, United States |
 | Cinctura lilium, 21-410 | Two turbinate, marine sea snail shells. The shells are tan in color. Irregular, white veritcal lines surround each whorl from the apex through the body whorl along with sharp narrow bands of dark brown. The apices and siphonal canals of the shells are a reddish-brown color. The shells have eight whorls and well-defined sutures. The shells are dextral with oval shaped apertures. The oval shaped operculum are brown to dark brown in color, covered with striations, and narrow to a point at one end. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Epitonium multistriatum, 21-103 | One turbinate, marine snail shell. The shell is white with eight whorls. The shell has deep sutures between each whorl and raised vertical striations along each whorl. The shell's raised striations are whiter in color than the rest of the shell. The shell is dextral, with an oval-shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina, United States |
 | Leptoxis carinata, 21-544 | Three turbinate, freshwater snail shells. The exteriors are tan and covered in a dark colored dirt. Internally, the shells are dark tan but appear to have once been white. The shells have three whorls, deep, moderately defined sutures, and are covered with transverse growth lines. The apices appear to have worn away leaving an indented area. The dextral shells have tear-drop shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Virginia, United States |
 | Terebra dislocata, 21-065 | Twenty-six turriform, marine snail shells. The colors of the shells are pale pink, a light shade of tan and gray. There are approximately twenty whorls; however, the whorls fade tremendously approaching the apex. The ornamentation on these shells is detailed. Each whorl contains raised growth lines and vertical striations. Some shells have variations of color from whorl to whorl, for example, white to black. The shells are dextral with ""teardrop"" shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina/Bay Point |
 | Pleurobema verum, 21-469 | One freshwater valve. The exterior is an orange-brown in color with visible growth lines and a white umbo due to wear. The interior of the valve is white with a shallow hinge and visible muscle scars and ventral margin. There is also a historic notation on the interior. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887 | 1810 | Alabama, United States |
 | Littoraria scabra, 21-229 | One turbinate, marine snail shell. The shell is off-white with tan and dark-brown dashed color bands from the apex through the basal lip. The shell is dextral with six whorls, distinct suturing and a tear-drop shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Foreman, Edward R., 1808-1885;Mazyck, William Gaillard, 1846-1942; Foreman, Edward R., 1808-1885;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1846 | Fiji Islands |
 | Margarites groenlandicus, 21-552 | One trochoid marine snail shell. The exterior is a dull tan color with an area of dark brown on the dorsal side. The shell has five whorls, deep, well-defined sutures, and is covered with spiral raised lines. The dextral shell has a rounded aperture and an open umbilicus. | Gibbes, Lewis Reeves, 1810-1894; Foreman, Edward R., 1808-1885;Mazyck, William Gaillard, 1846-1942; Foreman, Edward R., 1808-1885;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Massachusetts, United States |
 | Helicina fasciata, 21-358 | Two lenticular, terrestrial snail shells. The shells are ivory in color, with an ivory color inside. Shell 21-358.2 has brown colored bands. The shells have four whorls and shallow, well-defined sutures. The shells have oval shaped apertures, and thin lips that are reflected onto their bases. The shells are dextral. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Martinique |
 | Viviparus subpurpureus, 21-082 | Seven turbinate, marine snail shells. The shells are white and gray in color. Each shell has four whorls that are smooth and contain vertical striations. The shells are dextral, with oval-shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Beadle, Elias Root, 1812-1879;Mazyck, William Gaillard, 1846-1942; Beadle, Elias Root, 1812-1879;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Louisiana, United States |
 | Elliptio jayensis, 21-281 | Thirteen complete freshwater bivalves. Four of the bivalves are sealed closed with nine bivalves matching but not attached are present (18 valves). The shells are auriform in shape with colors ranging from dark tan, black, gray to white in combinations. The umbos are typically white, but coloration patterns vary with some showing swirls, color bands, and flaking. Growth lines are present and occasionally raised. The interiors of the shells are dull iridescent white nacre (mother of pearl) and have visible muscle scars. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Florida, United States |
 | Turritella communis, 21-104 | Four turriform, marine snail shells. Coloration ranges from white to light tan. The shells have between ten to fifteen whorls, with deep sutures between each whorl. There are striations and there are growth bands going up the shells. There are three spiral ridges or ribs that run horizontally along each whorl. The shells are dextral and have circular shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Ovula ovum, 21-419 | One saltwater cowrie shell. The exterior of the shell is white with a few tan and black smudges with the interior a dark tan. The columellar side is rounded. The aperture is elongated and teeth only on the labrum side. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Moluccas, Indonesia |
 | Pleurocera vestita, 21-546 | One turriform freshwater snail shell. The shell is tan in color but grows darker in color approaching the apex. Internally, the shell is cream in color. The shell has eight flat whorls. The shell has well-defined sutures, which form small ledges between the whorls. The shell is dextral and is covered with transverse growth lines. The shell has an oval shaped aperture. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Kaskaskia River, Illinois, United States |
 | Cepaea hortensis, 21-254 | Eleven lenticular, terrestrial snail shells. A representative shell has four whorls with shallow, but noticeable, sutures and two thick dark brown color bands. The shells have a great variety of ornamentation. Four of the shells are a consistent shade of tan with no color banding but with fine growth lines. The remaining seven shells exhibit dark brown stripes numbering from two to five. The shells are dextral with elliptical shaped apertures and thin white lips. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France;Massachusetts, United States |
 | Obliquaria reflexa, 21-474 | Two freshwater mussel valves comprising one complete specimen. The exteriors are brown with three horns on each valve as ornamintation. The specimen also has pronounced growth lines. Hinge is deep, though the pallial line and muscle scars are distinct. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Littorina saxatilis, 21-227 | Twenty-seven lenticular, marine snail shells. Shells are tan, cream and a light pink in color with shallow sutures. Larger shells have light black lines in the body whorls. There are approximately five whorls per shell. The shells are dextral with oval-like shaped apertures and visible growth lines. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Elimia virginica, 21-556 | Three turbinate freshwater snail shells. The exteriors are tan to brown and have a dull appearance. The periostracum near the shells' apices has worn off leaving the area white. Internally, the shells are white. The shells have four whorls, deep sutures, transverse growth lines, and shallow striae that grow dark brown near the apertures. The dextral shells have oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | New Jersey, United States |
 | Urosalpinx cinerea, 21-052 | Twelve turbinate, marine snail shells. The shells are light-tan, white and gray in color consisting of approximately four to five whorls each. The whorls contain raised striae that encircle the exterior of the shell with the growth lines. Raised costae travel vertically down the length of the shells. The vertical costae dip at each groove. The shells are dextral, with ""teardrop"" shaped apertures that extend basally into the siphonal canal. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | South Carolina |
 | Cerithium muscarum, 21-237 | Fifty-four turriform, marine snail shells. The shells are grey in color. A representative sample shows nine whorls with shallow sutures. The shells are ornamented with striations following under the small, numerous nodules that decrease in size approaching the apex. The shells are dextral with semi-circular apertures, thin lips and siphonal notches. | Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Florida |
 | Castalia ambigua, 21-356 | Four valves comprising two complete freshwater mussels. The triangular-shaped valves are dark brown and have a rusty appearance. Internally the valves are slightly iridescent, and are silver to ivory in color. The valves have a small amount of silver interior nacre and a thick periostracum. The periostracum on the umbos of the valves and in various patches on the valves is flaking off due to wear. The valves are elongated, and are covered with growth lines, striations, and transverse striations. The valves have deep muscle scars and large hinge teeth. The valves have pointed posterior edges and rounded anterior edges. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Amazon River |
 | Alasmidonta undulata, 21-475 | Two freshwater mussel valves comprising one complete specimen. The exteriors are brown with pronounced growth lines. There are also lighter brown lines going down vertically across the speicimen. Hinge is shallow, though the pallial line and the muscle scars are not distinct. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Canada to North Carolina |
 | Boreoscala greenlandica, 21-105 | Two turbinate, marine snail shells. The shells are white to gray in color with six whorls. There are deep sutures between each whorl, each with raised vertical striations (ribs). Fine horizontal striations run along each whorl. The shells are dextral, with oval-shaped apertures. The larger of the two shells has extensive damage. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Massachusetts |
 | Nerita tessellata, 21-511 | One lenticular sea snail shell. The exterior of the shell is a dull white with black color bands running transverse each whorl giving a checkered effect. The apex of the shell is white. The shell has five to six whorls with deep, distinct sutures. The dextral shell has a large tear drop shaped aperture with numerous small teeth on the interior of the lip, which is not reflected. | Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | West Indies |
 | Massylaea vermiculata, 21-256 | Three lenticular, terrestrial snail shells. Coloration consists of a light gray base with five, brown color bands. Ornamentation includes faint growth lines that, within the color bands, appear as dashes creating a streaky appearance overall. The shells are dextral with five whorls, shallow sutures, elliptical shaped apertures, and thin lips. | Mazyck, William Gaillard, 1846-1942;Museum National d'Historie Naturelle; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | France |
 | Io fluvialis, 21-526 | Three turbinate, freshwater snail shells. The exteriors are tan to brown and dull in appearance. Internally, the shells are cream and slightly iridescent. The shells have five whorls, shallow sutures, and spines near the sutures on the body and middle whorls. The periostracum has flaked off the spines and apices of the shells. The shells are dextral with oval-shaped apertures. | Brumby, Richard Trapier, 1804-1875;Mazyck, William Gaillard, 1846-1942; Brumby, Richard Trapier, 1804-1875;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Nolichucky River, Tennessee, United States |
 | Bivalvia (indeterminate), 21-321 | Two valves comprising one complete specimen. The exteriors coloration vary from ivory and tan to white in color. The interiors are gray, ivory, and white. The shells have a thick periostracum. that is no longer present over most of the exteriors, although patches of brown periostracum appear on the anterior edges. The shells are covered with growth lines and striations. The shells have very shallow muscle scars and small hinge teeth. The shells are triangular in shape with pointed posterior and anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Tricolia pullus, 21-570 | Five turbinate marine snail shells. The exteriors are beighe and slightly reflective with red-brown color bands. The interiors are cream in color. The shells are covered with striae and transverse growth lines and have deep, well-defined sutures. The dextral shells have oval shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | England, United Kingdom |
 | Zonitoides nitida, 21-186 | Six lenticular, terrestrial snail shells. The shells are tan in color with darker coloring near the apices. There are four whorls each covered in radial growth lines and the apices are nearly flat. The shells are dextral with oval-shaped apertures and completely open umbilici. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Scarborough, North Yorkshire, England, United Kingdom |
 | Hippopus hippopus, 21-425 | One medium sized valve of a saltwater clam. The thick white shell is littered with purple-pink dashes. Striae run from the hinge to the outer edge and along with spines. The interior side of the shell is white with a jagged edge. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | |
 | Truncilla donaciformis, 21-384 | Two freshwater mussel valves, one complete specimen. The exteriors are brown to tan in color with vertical, green color bands radiating from the hinges. Thin striations and growth lines run horizontally. The valves are ellipse in shape with white iridescent interiors. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Illinois, United States |
 | Elliptio angustata, 21-312 | Two valves comprising one freshwater mussel. The exteriors are dark brown with a thick periostracum that is flaking due to wear. The interiors have an iridescent silver nacre, shallow muscle cars and small hinge teeth. The elliptical shaped shells are elongated and covered with growth lines and striations. The valves have pointed posterior edges and slightly pointed anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Abbeville, Abbeville County, South Carolina, United States |
 | Obovaria arkansasensis, 21-313 | Two valves comprising one complete freshwater mussel. The exteriors range in color from dark brown and tan to green with a thick periostracum that is flaking near the umbos due to wear. The interiors are iridescent silver to white. The valves have deep growth lines, striations, shallow muscle scars, and moderately sized hinge teeth. The valves have rounded anterior edges and squared posterior edges. The exterior surface of the valves is rough to the touch. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;White, George Washington, 1802-1887 | 1810 | |
 | Lampsilis teres, 21-306 | Ten valves comprising five complete freshwater mussels. Externally, the valves are tan to dark brown in color with a thick periostracum. The interiors are iridescent with a white and silver nacre. The triangular valves have deep muscle scars with large hinge teeth. The valves have pointed posterior edges and rounded anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Blanding, William, 1773-1857;Mazyck, William Gaillard, 1846-1942; Blanding, William, 1773-1857;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Frankfort, Franklin County, Kentucky, United States |
 | Excavata costata, 21-199 | Two lenticular, terrestrial snail shells. One is a creamy tan color and the other is light gray in color. Raised striae and growth lines run horizontally around the shells. The shells are dextral with tear-drop shaped apertures. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Newcomb, Wesley, 1818-1892 | 1810 | Jamaica |
 | Pleurobema rubrum, 21-396 | Thirteen valves, six complete freshwater mussel specimens and one isolated valve. The exteriors are dark brown at the umbo, fading to a lighter brown near the edges and are covered in growth lines and striations. The periostracum is flaking at the umbos. The interiors are white and slightly iridescent, with deep muscle scars and large hinge teeth. The triangular shaped valves have rounded anterior edges and rounded posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Kentucky River, Frankfort, Franklin County, Kentucky, United States |
 | Lithopoma caelatum, 21-382 | One trochoid, marine snail shell. The shell is off-white to tan in color with brown and brownish green dashes. There are approximately seven whorls covered in striae and radiating costae. The apex of the shell is much smoother than the rest of the exterior. The shell is dextral, with an oval shaped aperture. Inside the aperture, there is a glossy coating, and the umbilicus is closed. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Key West, Monroe County, Florida, United States |
 | Polygyra cereolus, 21-263 | Thirty-seven lenticular, terrestrial snail shells. The shells are gray in color, a representative shell has six whorls and shallow sutures. The shells have clear, defined growth lines. The shells are slightly conical and have vortex-like umbilici. The shells are dextral with a semi-circular (almost heart shaped) apertures with single denticles. The lips are thin and reflect slightly onto the body of the shell. | Gibbes, Lewis Reeves, 1810-1894; Foreman, Edward R., 1808-1885;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849;Wurdemann, Gustavus, 1818-1859; Foreman, Edward R., 1808-1885;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849;Wurdemann, Gustavus, 1818-1859 | 1810 | Fort Pierce Inlet, Saint Lucie County, Florida, United States |
 | Arcidens confragosus, 21-314 | Two valves comprising one complete freshwater mussel. The shells are elliptical, and the exteriors show a range of colors from dark brown and tan to green. The anterior edge of the shells is rounded, and the posterior edge of the shells is squared. The interiors of the shells are an iridescent, silver to white nacre. Deep growth lines, striations, and nodules cover the shells. The thick periostracum on the nodules of the shells has flaked off due to wear. The shells have shallow muscle scars and moderately sized hinge teeth. Externally the shells are very rough. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Mississippi, United States |
 | Siliqua patula, 21-322 | Two valves comprising one complete salt water clam specimen. The shells are brown to tan in color, with a slightly iridescent, silver to white interior nacre. The periostracum on the umbos of the shells has flaked off due to wear. The shells are very elongated and are covered with growth lines and striations. The shells have deep muscle scars and very small hinge teeth. The shells are elliptical in shape. Shell 21-322.1 has two small holes. The valves have rounded posterior edges and anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | San Luis Obispo, San Luis Obispo County, California, United States |
 | Solen marginatus, 21-323 | Two valves comprising one complete saltwater clam. The exteriors are tan to ivory in color with purple colored streaks present. The shells are elongated and covered with growth lines and striations. The interiors are a slightly iridescent, tan to ivory color. The valves have shallow muscle scars and small hinge teeth. The valves are rectangular in shape, with a slight bend, which gives them more depth and creates a ""C"" shape when viewing them from the side. The shells have squared posterior edges and pointed anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Foreman, Edward R., 1808-1885;Mazyck, William Gaillard, 1846-1942; Foreman, Edward R., 1808-1885;Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Europe |
 | Pholas dactylus, 21-324 | Two valves comprising one complete saltwater clam. The exteriors are brown, tan and ivory. The interiors are a slightly iridescent, silver to white color. The shells have a small amount of silver interior nacre and a thin periostracum that has is flaking on the umbos due to wear. The shells are very elongated and covered with growth lines, striations, and small nodules. The shells have very shallow muscle scars and small hinge teeth. The shells are elliptical in shape, with large, pointed, beaked anterior edges and rounded posterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | England |
 | Fusconaia flava, 21-302 | Four valves that form two complete freshwater mussels. The exteriors range from brown to tan in color and are covered with a thick periostracum that is flaking due to wear. The interiors are iridescent with white to silver nacre. The triangular valves have growth lines, deep muscle scars, large hinge teeth, and are covered with striations. The valves have pointed posterior edges and rounded anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
 | Janthina janthina, 21-121 | Twenty-one lenticular in total (12 pictured), marine snail shells. The shells are lavender purple and white. The shells have approximately two to three whorls each. Coloration is mostly white on top, but purple underneath. The shells have growth lines and vertical striations. The apertures are mostly ""D"" shaped, but some have intricate curves inside the aperture. | Gibbes, Lewis Reeves, 1810-1894; Harvey, William Henry, 1811-1866;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849; Gibbes, Lewis Reeves, 1810-1894;Harvey, William Henry, 1811-1866;Mazyck, William Gaillard, 1846-1942;Wurdemann, Dr. John George F., 1810-1849 | 1810 | Key West, Monroe County, Florida, United States |
 | Pleurobema clava, 21-388 | Four valves that comprise two complete freshwater mussel specimens. The exteriors of the valves are brown in color with varying shades of light and dark brown. Well defined growth lines and striations radiate horizontally from the hinge across the shell. Thick, dark brown color bands appear on the exteriors of the shell. The interiors of the shells are white in color with a glossy iridescent hue. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Tennessee, United States |
 | Epioblasma torulosa, 21-391 | One valve of a freshwater mussel. The valve is round in shape. The exterior of the valve is a light brown color with a green hue and reaches white near the hinge. Covering the exterior of the shell are thin, green, vertical striations that radiate from the hinge of the shell to the edges. The interior of the shell is white in color with a slightly pearlescent coating. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio River, Ohio, United States |
 | Obovaria subrotunda, 21-304 | Six valves comprising three complete freshwater mussels. The shell exteriors are brown to dark brown with iridescent, white, silver, and gold nacre on the interiors. The exteriors are covered with a thick periostracum (flaking in places due to wear), growth lines, and striations. The shells have deep muscle scars and large hinge teeth. The shells are circular with round posterior and anterior edges. | Gibbes, Lewis Reeves, 1810-1894; Mazyck, William Gaillard, 1846-1942; Gibbes, Lewis Reeves, 1810-1894;Mazyck, William Gaillard, 1846-1942 | 1810 | Ohio, United States |
