original description
Baker, F. C. (1906). Notes on a collection of mollusks from the vicinity of Alpena, Michigan. <em>Transactions of the Academy of Science of St. Louis.</em> 16(2): 1-15, plate 1., available online at https://www.biodiversitylibrary.org/page/6217999
page(s): 12, pl. 1, figs. 1-4 [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]
From editor or global species database
Type locality USA, Michigan, Thunder Bay Island, near Alpena [details]