MolluscaBase taxon details
original description
(of Cyclostoma (Cyclotus) irregulare L. Pfeiffer, 1855) Pfeiffer, L. (1855). Descriptions of thirty-eight new species of land shells, from the collection of H. Cuming. <em>Proceedings of the Zoological Society of London.</em> 23 (291): 111–119. London [13 August]., available online at https://www.biodiversitylibrary.org/page/30748004
page(s): 117 [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]