MolluscaBase taxon details
original description
(of Helix leaii A. Binney, 1840) Binney, A. (1840). A monograph of the helices inhabiting the United States. <em>Boston Journal of Natural History.</em> 3(3): 353-394, pls 7-19, 26., available online at https://biodiversitylibrary.org/page/32416090 page(s): 362 [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
Lee, H. G. (2010). Gettleman key to probe of major reversals. <em>American Conchologist.</em> 38(4): 6-11., available online at https://conchologistsofamerica.org/wp-content/uploads/2019/01/38-dec-2010.pdf page(s): 9 [details]
additional source
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): 88 [details]
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