original description
Stearns, R. E. C. (1883). Description of a new hydrobiinoid gasteropod from the mountain lakes of the Sierra Nevada, with remarks on allied species and the physiographical features of said region. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 35:171-176., available online at https://www.biodiversitylibrary.org/page/6387194
page(s): 173, [unlabeled figure, p. 173] [details]
basis of record
Hershler, R. (1994). A review of the North American freshwater snail genus <i>Pyrgulopsis</i> (Hydrobiidae). <em>Smithsonian Contributions to Zoology.</em> 554: 1-115., available online at https://repository.si.edu/handle/10088/5139
page(s): 55 [details] Available for editors [request]
From editor or global species database
Type locality USA, Nevada, Walker and Pyramid Lakes, Nevada. Subsequently restricted to Pyramid Lake, Washoe County [details]
From editor or global species database