Fluted pebblesnail
The fluted pebblesnail, scientific name Somatogyrus hendersoni, is a species of very small freshwater snail with an operculum, an aquatic gastropod mollusc in the family Lithoglyphidae. This species is endemic to Alabama in the United States. Its natural habitat is the Coosa River, but it has not been collected since the river was impounded. References

Endemic molluscs of the United States
Somatogyrus
Gastropods described in 1909
Taxonomy articles created by Polbot
Endemic fauna of Alabama