Traits taxon details
original description
(of ) Pilsbry, H. A. (1896). New species of the helicoid genus <i>Polygyra</i>. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 48(1): 15-20, plates 2-3., available online at https://www.biodiversitylibrary.org/page/1675420 page(s): 17-18, pl. 2, figs. 1-3 [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 
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 ponsonbyi (Pilsbry, 1896) [details]
|