Atlas pebblesnail

The atlas pebblesnail (Somatogyrus humerosus) is a species of small freshwater snail that has an operculum, an aquatic operculate gastropod micromollusc in the family Lithoglyphidae. This species is endemic to the Alabama in the United States. Its natural habitat is the Tennessee River around Florence, Alabama, but it has not been collected recently.^[2]

Atlas pebblesnail
Conservation status
Critically endangered, possibly extinct  (IUCN 3.1)[1]
Possibly Extinct  (NatureServe)[2]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Lithoglyphidae
Genus:	Somatogyrus
Species:	S. humerosus
Binomial name
Somatogyrus humerosus Walker, 1906