MolluscaBase name details
original description
Vanatta, E. G. (1899). <i>Planorbis opercularis</i> var. <i>oregonensis</i> Van. preoccupied. <em>The Nautilus.</em> 13(4): 48., available online at https://www.biodiversitylibrary.org/page/42799948
page(s): 48 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]