original description
Leonard, A. B. (1972). New gastropods from the Pleistocene of Illinois. <em>The Nautilus.</em> 85(3): 78-84, figs. 1-9., available online at https://www.biodiversitylibrary.org/page/8516182
page(s): 84, figs 4-6 [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 Long Lake Section, in silts of the Banner Formation of Kansan age, situated in the center of NW1/4 NW1/4 sec 18, T 2 N, R 2 E, Schuyler County, Illinois (USA) [details]