Pyrgulopsis nevadensis (Stearns, 1833:173)

Corded purg



Taxonomy & Nomenclature

Synonym/s: Pyrgula nevadensis Stearns, 1883:173


Conservation Status


Last record: "many years [ago]" (Hershler & Liu, 2017:49)

IUCN RedList status: Extinct



"Three lakes in the western Great Basin" (Hershler & Liu, 2017:49) (incl. Pyramid Lake, Washoe County), Nevada, USA


Biology & Ecology




Lectotype: ANSP 27811

Paralectotypes: ANSP 375739






Burch, J.B. 1989. North American Freshwater Snails. Malacological Publications: Hamburg, Michigan. 365 pp.

Cowie, Robert H., Régnier, Claire, Fontaine, Benoît, and Bouchet, Philippe. (2017). Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41.

Frest, T.J. and E.J. Johannes. 1995a. Freshwater Mollusks of the Upper Klamath Drainage, Oregon. Final report to the Oregon Natural Heritage Program, 821 SE 14th, Portland, Oregon 97214. Contract #ORFO 092094. 68 pp. plus appendices.

Hanna, G. D. 1929-1930. PYRGULOPSIS NEVADENSIS (Stearns) in Oregon [note]. The Nautilus 43:103-104.

Hershler, R. 1994. A review of the North American freshwater snail genus Pyrgulopsis (Hydrobiidae). Smithsonian Contributions to Zoology 554: 1-115.

Hershler, Robert and Liu, Hsiu-Ping. (2017). Annotated Checklist of Freshwater Truncatelloidean Gastropods of the Western United States, with an Illustrated Key to the Genera.  Technical Note 449. U.S. Department of the Interior, Bureau of Land Management, National Operations Center, Denver, CO.

Hershler, R. and D.W. Sada. 1987. Springsnails (Gastropoda: Hydrobiidae) of Ash Meadows, Amargosa Basin, California-Nevada. Proc. Biol. Soc. Wash. 100(4): 776-843.

Hilton-Taylor, C. 2000. 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK.

La Rivers, I. 1962. Fishes and fisheries of Nevada. Nevada State Fish and Game Commission, Reno. 782 p.

Mollusc Specialist Group. (2000a). Pyrgulopsis nevadensis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. ( Downloaded on 27 July 2013.

Mollusc Specialist Group. 2000b. Pyrgulopsis nevadensis. The IUCN Red List of Threatened Species 2000: e.T40048A10311237. Accessed on 19 June 2022.

Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.

Turgeon, D.D., J.F. Quinn, Jr., A.E. Bogan, E.V. Coan, F.G. Hochberg, W.G. Lyons, P.M. Mikkelsen, R.J. Neves, C.F.E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F.G. Thompson, M. Vecchione, and J.D. Williams. 1998. Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks. 2nd Edition. American Fisheries Society Special Publication 26, Bethesda, Maryland: 526 pp.


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