Pleurobema decisum

{{Short description|Species of bivalve}}

{{Speciesbox

| image = Pleurobema decisum.jpg

| image_caption =

| status = EN

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Bogan, A. |author2=Cordeiro, J. |date=2012 |title=Pleurobema decisum |volume=2012 |page=e.T17679A1447123 |doi=10.2305/IUCN.UK.2012-1.RLTS.T17679A1447123.en |access-date=17 November 2021}}

| genus = Pleurobema

| species = decisum

| authority = (I. Lea, 1831)

| synonyms =

}}

Pleurobema decisum, the southern clubshell, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.

This species is endemic to the United States. Its natural habitat is rivers. It is threatened by habitat loss. The species natural habitat is in Mississippi, Alabama, and Georgia (U.S. state).{{Cite web|url=https://ecos.fws.gov/ecp0/profile/speciesProfile?spcode=F036|title=Species Profile for Southern Clubshell|last=|first=|date=|website=ecos.fws.gov|publisher=U.S. Fish and Wildlife Service|access-date=November 4, 2016}}