Traits taxon details
original description
(of ) Metcalf, A. L. & Riskind, D. H. (1978). Four new species of Polygyra (Gastropoda, Pulmonata, Polygyridae) from Coahuila, Mexico. <em>Proceedings of the Biological Society of Washington.</em> 91:815–827., available online at https://www.biodiversitylibrary.org/page/34602098 page(s): 819 [details] Available for editors 
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 
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