MolluscaBase taxon details
original description
(of Helix (Polygyra) triangularis Mabille, 1895) Mabille, J. (1895). Mollusques de la Basse Californie recueillis par M. Diguet. <em>Bulletin de la Société Philomathique de Paris.</em> ser. 8, 7: 54-76., available online at https://biodiversitylibrary.org/page/31967279
page(s): 66 [details]
original description
(of Helix (Polygyra) behrii Gabb, 1865) Gabb, W. M. (1865). Description of three new species of Mexican land shells. <em>American Journal of Conchology.</em> 1(3): 208-209., available online at https://www.biodiversitylibrary.org/page/16084735
page(s): 208 [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 [details]