Pyrgulopsis bryantwalkeri

Cortez Hills pebblesnail
Critically Imperiled
Critically Imperiled (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Hydrobiidae
Genus: Pyrgulopsis
Species:
P. bryantwalkeri
Binomial name
Pyrgulopsis bryantwalkeri
(Hershler, 1994)
Synonyms[2]
  • Fluminicola nevadensis Walker, 1916

Pyrgulopsis bryantwalkeri, the Cortez Hills pebblesnail, is a species of small freshwater snail with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.

This species' natural habitat is springs. It is endemic to a spring in the Cortez foot-hills, Elko County, Nevada, United States.[3]

Description

Pyrgulopsis bryantwalkeri is a small snail that has a height of 1.5–3.2 millimetres (0.059–0.126 in) and globose to ovate-conic shell. Its differentiated from other Pyrgulopsis in that its penial filament has a very weak lobe and short filament with the penial ornament consisting of a weakly developed terminal gland.[3]

References

  1. ↑ NatureServe. "Pyrgulopsis bryantwalkeri". NatureServe Explorer. Arlington, Virginia. Retrieved 6 April 2026.
  2. ↑ Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O (eds.). "Pyrgulopsis bryantwalkeri Hershler, 1994". MolluscaBase. World Register of Marine Species. Retrieved 27 April 2026.
  3. 1 2 Hershler, Robert (1994). A Review of the North American Freshwater Snail Genus Pyrgulopsis (Hydrobiidae). Washington, DC: Smithsonian Institution Press.