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.