MolluscaBase taxon details
original description
(of Helix demissus A. Binney, 1843) Binney, A. (1843). Descriptions of two undescribed species of North American helices. Boston Journal of Natural History, 4(3): 360-362, plates 16, 20., available online at https://www.biodiversitylibrary.org/page/5362938#page/400/mode/1up
page(s): 361, pl. 16, fig. 17 [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]
additional source
Archer, A. F. (1934). Sinistral land snails from Ann Arbor, Michigan. <em>The Nautilus.</em> 47(4): 148-149., available online at https://www.biodiversitylibrary.org/page/8522737 [details]