Neoplanorbis smithi

†Neoplanorbis smithi was a species of small freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ramshorn snails. This species was endemic to the United States; it is now extinct. The shells of this species appear to be dextral in coiling, but as is the case in all planorbids, the shell is actually sinistral. In life the shell was carried upside down with the aperture on the right, and this makes it appear to be dextral.

Neoplanorbis smithi
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily:
Planorboidea
Family:
Planorbidae
Subfamily:
Neoplanorbinae
Genus:
Neoplanorbis
Species:
†N. smithi
Binomial name
†Neoplanorbis smithi
Walker, 1908

References
  1. Bogan A. E. (2000). Neoplanorbis smithi. 2006 IUCN Red List of Threatened Species. Retrieved 7 August 2007.


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