original description
(of Oligyra orbiculata Say, 1818) Say T. (1818). Account of two new genera, and several new species, of fresh water and land snails. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 1: 276-284., available online at http://biodiversitylibrary.org/page/24680546
page(s): 283 [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
Guppy, R. J. L. (1895). On a landshell of the genus <i>Helicina</i> from Grenada and on the classification of the Helicinidae. <em>Proceedings of the Victoria Institute of Trinidad.</em> Pt. 2: 72-77., available online at https://www.biodiversitylibrary.org/page/54372350
page(s): 76 [details]
From editor or global species database