Traits taxon details
original description
(of ) Binney, W. G. (1857). Notes on American land shells. No. 2. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 183-193., available online at https://www.biodiversitylibrary.org/page/6330449 page(s): 185 [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
Talmadge, R. R. (1948). <i>Helminthoglypta nickliniana</i> extending northward. <em>The Nautilus.</em> 62(2): 71., available online at https://www.biodiversitylibrary.org/page/8519614 [details]
|