The Tallapoosa pebblesnail, scientific name Somatogyrus pilsbryanus, is a species of very small freshwater snail with an operculum, an aquatic gastropod mollusc in the family Hydrobiidae.

This species is endemic to Alabama[2] in the United States.

Its natural habitat is rivers.

The common name of this pebblesnail refers to the Tallapoosa River, which runs through the states of Georgia and Alabama.

This Hydrobiidae-related article is a stub.