Traits name details
original description
(of ) Simpson, C. T. (1888). Notes on some Indian Territory land and fresh-water shells. <em>Proceedings of the United States National Museum.</em> 11: 449-454., available online at https://www.biodiversitylibrary.org/page/7608563 page(s): 450 [details]
basis of record
Emberton, K. C. (1995). When shells do not tell: 145 million years of evolution in North America's polygyrid land snails, with a revision and conservation priorities. <em>Malacologia.</em> 37(1): 69-110. Ann Arbor., available online at https://www.biodiversitylibrary.org/page/13113494 page(s): 92 [details]
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