Traits taxon details
original description
(of ) Cooper, J. G. (1869). On the distribution and localities of west coast helicoid land shells, &c. <em>American Journal of Conchology.</em> 4(4): 211-240., available online at https://www.biodiversitylibrary.org/page/16070320 page(s): 221 [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]
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