Wet rock physa

The Wet rock physa, scientific name Physella zionis, is a species of freshwater snail, an aquatic pulmonate gastropod mollusc in the family Physidae, the bladder snails. This species is endemic to two connected canyons, Zion Canyon and Orderville Canyon, along the north fork of the Virgin River in Zion National Park, Washington County, Utah, a stretch of about 5 kilometers (3.1 mi) (Oliver & Bosworth 1999).

Wet rock physa
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily:
Planorboidea
Family:
Physidae
Subfamily:
Physinae
Tribe:
Physellini
Genus:
Physella
Species:
P. zionis
Binomial name
Physella zionis
Pilsbry, 1926

References
  1. Bogan, A.E. (1996). "Physella zionis". IUCN Red List of Threatened Species. 1996: e.T17243A6890911. doi:10.2305/IUCN.UK.1996.RLTS.T17243A6890911.en. Retrieved 17 November 2021.

Oliver, G. V. and Bosworth, W. R. III. (1999). Rare, Imperiled, and Recently Extinct or Extirpated Mollusks of Utah: A Literature Review. Utah Division of Wildlife Resources. Publication Number 99-29.


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