MolluscaBase taxon details
original description
(of Polygyra mullani hendersoni Pilsbry, 1928) Pilsbry, H. A. (1928). Species of <i>Polygyra</i> from Montana, Idaho, and the Pacific coast states. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 80: 177-186.
page(s): 178, fig. 2 [details]
original description
(of Helix (Mesodon) mullani oregonensis Ancey, 1882) Ancey, C.F. (1882). Coquilles nouvelles ou peu connues. <em>Le Naturaliste.</em> 4(4): 29 [15 February 1882]; 4(7): 55 [1 April 1882]., available online at https://www.biodiversitylibrary.org/page/33927207
page(s): 29 [details]
original description
(of Polygyra devia oregonensis Vanatta, 1914) Vanatta, E. G. (1914). Montana shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 66(2): 367-371, text-figs. 1-2., available online at https://www.biodiversitylibrary.org/page/24687241
page(s): 368 [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]