This aquatic bivalve mollusk is native to the Tennessee, Cumberland, and lower Ohio Rivers in the United States, where its distribution has declined over 70%.

[3] This rounded mussel grows up to 9.5 centimeters long by 7.8 wide by 4.6 high.

[4] It has bumps on the posterior part of the shell and the foot is orange in live specimens.

[3] The mussel mainly lives in deep, fast-flowing rivers, especially with gravel or sand on the bottoms.

[4] The zebra mussel (Dreissena polymorpha) is a widespread threat.