MolluscaBase name details
original description
Dall, W. H. (1866). On a species of <i>Helix</i> from California, supposed to be new. <em>American Journal of Conchology.</em> 2(4): 328-329, plate 21., available online at https://www.biodiversitylibrary.org/page/15841294
page(s): 328, pl. 21, fig. 4 [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]