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.