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.