MolluscaBase taxon details
original description
(of Helix germana 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): 156, pl. 40a, fig.3 [details]
original description
(of Polygyra germana vancouverinsulae Pilsbry & C. M. Cooke, 1922) Pilsbry, H. A. & Cooke, C. M. (1922). Land shells of Vancouver Island. <em>The Nautilus.</em> 36(2): 37-38., available online at https://www.biodiversitylibrary.org/page/8279835
page(s): 38 [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]