Epioblasma_penita
Epioblasma penita
Species of bivalve
Epioblasma penita, the southern combshell or penitent mussel, 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.