Stocky pebblesnail

The stocky pebblesnail, scientific name Somatogyrus crassus, is a species of very small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to the United States. Its natural habitat is rivers.

Stocky pebblesnail

Critically endangered, possibly extinct  (IUCN 2.3)[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Truncatelloidea
Family:
Hydrobiidae
Genus:
Somatogyrus
Species:
S. crassus
Binomial name
Somatogyrus crassus
Walker, 1904

References
  1. Mollusc Specialist Group (2000). "Somatogyrus crassus". The IUCN Red List of Threatened Species. IUCN. 2000: e.T20349A9189780. doi:10.2305/IUCN.UK.2000.RLTS.T20349A9189780.en. Retrieved 14 December 2017.


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