It is elongate and somewhat square in shape. There are no ridges on the posterior dorsal margin, and there are no bumps in the beak area, thus separating it from the Washboard. Nacre is white, but may contain colored areas. Compare to Pistolgrip and Washboard . The shell is somewhat rounded square and inflated.
Shell color is yellowish to green or light brown.
The anterior end is rounded and the dorsal margin is straight. Nacre is white but may be pink in Alabama and Tombigbee Rivers. Compare to Quadrula and Cyclonaias . The shell is generally square and somewhat inflated. Color is yellowish-green to light brown and often has several green rays running vertically from the beak.