MolluscaBase name details
original description
(of Helix griseola L. Pfeiffer, 1841) Pfeiffer, L. (1841). <i>Symbolae ad historiam Heliceorum</i>. Sectio prima [vol. 1]. Kassel: Th. Fischer. 88 pp. , available online at https://biodiversitylibrary.org/page/12254132
page(s): 41 [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]