MolluscaBase taxon details
original description
(of Polygyra nelsoni Dall, 1897) Dall, W. H. (1897). New species of Mexican land shells. <em>The Nautilus.</em> 11(7): 73-74., available online at https://www.biodiversitylibrary.org/page/1774570
page(s): 74 [details]
original description
(of Polygyra nelsoni var. collisella Dall, 1897) Dall, W. H. (1897). New species of Mexican land shells. <em>The Nautilus.</em> 11(7): 73-74., available online at https://www.biodiversitylibrary.org/page/1774570
page(s): 74 [details]
basis of record
Thompson, F. G. (2011). An annotated checklist and bibliography of the land and freshwater snails of México and Central America. <em>Florida Museum of Natural History Bulletin.</em> 50(1): 1-299. [details] Available for editors [request]
additional source
Emberton, K. C. (1995). When shells do not tell: 145 million years of evolution in North America's polygyrid land snails, with a revision and conservation priorities. <em>Malacologia.</em> 37(1): 69-110. Ann Arbor., available online at https://www.biodiversitylibrary.org/page/13113494
page(s): 90; note: As ? Linisa nelsoni (Dall, 1897) [details]