MolluscaBase name details
Polygyra columbiana megasoma Pilsbry, 1928
1367033 (urn:lsid:marinespecies.org:taxname:1367033)
unaccepted
Subspecies
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): 185, figs. 8-9 [details]
page(s): 185, figs. 8-9 [details]
MolluscaBase eds. (2021). MolluscaBase. Polygyra columbiana megasoma Pilsbry, 1928. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1367033 on 2025-09-11
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original description
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): 185, figs. 8-9 [details]
basis of record InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project.
page(s): 185, figs. 8-9 [details]
additional source Pilsbry, H. A. (1931). <i>Polygyra columbiana megasoma</i> (Dall). <em>The Nautilus.</em> 44(3): 101-102., available online at https://www.biodiversitylibrary.org/page/8514963 [details]
page(s): 185, figs. 8-9 [details]
basis of record InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project.
page(s): 185, figs. 8-9 [details]
additional source Pilsbry, H. A. (1931). <i>Polygyra columbiana megasoma</i> (Dall). <em>The Nautilus.</em> 44(3): 101-102., available online at https://www.biodiversitylibrary.org/page/8514963 [details]