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.