MolluscaBase name details
original description
Pilsbry, H. A. (1928). Species of <i>Polygyra</i> from Montana, Idaho, and the Pacific coast states. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 80: 177-186.
page(s): 178, fig. 2 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project.
page(s): 178, fig. 2 [details]