original description
Walker, B. (1892). The shell bearing Mollusca of Michigan. <em>The Nautilus.</em> 6(3): 31-35, pl. 1; 6(4): 42-47; 6(6): 63-67., available online at https://www.biodiversitylibrary.org/page/12596805
page(s): 33, pl. 1, figs. 9-10 [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): 33, pl. 1, figs. 9-10 [details]
From editor or global species database
Type locality USA, Michigan, Wayne County, Ecorse and Greenfield [details]