Granite pebblesnail
The Granite pebblesnail, scientific name Somatogyrus hinkleyi, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Lithoglyphidae. This species is endemic to Alabama in the United States. Its natural habit is the Coosa and Tallapoosa Rivers, but it has not been collected since these rivers were impounded. References

Endemic molluscs of the United States
Freshwater snails
Somatogyrus
Gastropods described in 1904
Taxonomy articles created by Polbot
Endemic fauna of Alabama