MolluscaBase taxon details
original description
Hershler, R. (1989). Springsnails (Gastropoda: Hydrobiidae) of Owens and Amargosa River (Exclusive of Ash Meadows) Drainages, Death Valley System, California-Nevada. <em>Proceedings of the Biological Society of Washington.</em> 102 (1): 176-248., available online at https://www.biodiversitylibrary.org/page/34606767
page(s): 181, fig. 15 [details]
additional source
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 [details] Available for editors [request]