Reverse pebblesnail

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

Reverse pebblesnail
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Truncatelloidea
Family:
Hydrobiidae
Genus:
Somatogyrus
Species:
†S. alcoviensis
Binomial name
†Somatogyrus alcoviensis
Krieger, 1972

This species was endemic to the United States. It is now extinct.

References
  1. 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 November 2021.


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