MolluscaBase name details
original description
(of Helix divesta A. Gould, 1851) Gould, A.A. (1851). The terrestrial air-breathing mollusks of the United States, and the adjacent territories of North America. Vol. 2. Little, Brown and Company, Boston. 1-366.
page(s): 358 [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
Pilsbry, H. A. (1899). New southwestern forms of <i>Polygyra</i>. <em>The Nautilus.</em> 13(4): 37-41., available online at https://www.biodiversitylibrary.org/page/3758245
page(s): 38-39 [details]