About Pleurobema decisum (I.Lea, 1831)
Pleurobema decisum, commonly known as the southern clubshell, is a species of freshwater mussel. It is an aquatic bivalve mollusk that belongs to Unionidae, the river mussel family. This species is endemic to the United States, and it is found naturally in the U.S. states of Mississippi, Alabama, and Georgia. Its natural habitat is rivers. The species is currently threatened by habitat loss.