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Reverse pebblesnail
Conservation status
Extinct (outdated)  (IUCN 3.1)
Critically Imperiled  (NatureServe)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Neotaenioglossa
Family:	Lithoglyphidae
Genus:	Somatogyrus
Species:	†S. alcoviensis
Binomial name
†Somatogyrus alcoviensis Krieger, 1972

The reverse pebblesnail, scientific name Somatogyrus alcoviensis, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Hydrobiidae.

This species is endemic to Newton County, Georgia in the United States, where it occurs in the Alcovy and Yellow Rivers. It was believed extinct until it was rediscovered in a 2000 survey.

References

1. ^ Watson, C.N. Jr (2000). R.A. Tankersley; D.I. Warmolts; G.T. Watters; B.J. Armitage; P.D. Johnson; R.S. Butler (eds.). "Results of a survey for selected species of Hydrobiidae (Gastropoda) in Georgia and Florida". Freshwater Mollusk Symposia Proceedings. Ohio Biological Survey, Columbus, Ohio: 233–244.
2. Bogan, A.E. (2000). "Somatogyrus alcoviensis". IUCN Red List of Threatened Species. 2000: e.T40053A10311559. doi:10.2305/IUCN.UK.2000.RLTS.T40053A10311559.en. Retrieved 17 February 2023.
3. ^ "Somatogyrus alcoviensis". NatureServe Explorer An online encyclopedia of life. 7.1. NatureServe. Retrieved 17 February 2023.

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• IUCN Red List extinct species
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• Somatogyrus
• Endemic fauna of Georgia (U.S. state)
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