MolluscaBase name details
Polygyra appressa var. extrema MacMillan, 1940
1367432 (urn:lsid:marinespecies.org:taxname:1367432)
unaccepted > junior subjective synonym
Variety
MacMillan, G. K. (1940). A new variety of <i>Polygyra appressa</i> (Say). <em>The Nautilus.</em> 53(3): 98., available online at https://www.biodiversitylibrary.org/page/8516392
page(s): 98 [details]
page(s): 98 [details]
Type locality contained in USA
, Note "Jefferson County, Tennessee."
type locality contained in USA (origin: native) [details]
Type locality "Jefferson County, Tennessee." [details]
MolluscaBase eds. (2025). MolluscaBase. Polygyra appressa var. extrema MacMillan, 1940. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1367432 on 2025-09-11
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
original description
MacMillan, G. K. (1940). A new variety of <i>Polygyra appressa</i> (Say). <em>The Nautilus.</em> 53(3): 98., available online at https://www.biodiversitylibrary.org/page/8516392
page(s): 98 [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): 98 [details]
page(s): 98 [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): 98 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality "Jefferson County, Tennessee." [details]
