original description
La Rocque, A. (1932). A new variety of <i>Valvata lewisi</i> from the Pleistocene of Ontario. <em>The Canadian Field-Naturalist.</em> 46(9) 199.
page(s): 199 [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): 199 [details]
From editor or global species database
Type locality "Shallow Lake, Grey Co., Ont[ario], in marl of late Wisconsin age (Pleistocene)" [details]