MolluscaBase name details
original description
(of Helicina sowerbyana L. Pfeiffer, 1849) Pfeiffer, L. (1849). Description of twenty-nine new species of <i>Helicina</i>, from the collection of H. Cuming, Esq. <em>Proceedings of the zoological Society of London.</em> 16 (187-188) [“1848”]: 119–125. London [25 April]., available online at https://www.biodiversitylibrary.org/page/12861983 page(s): 124 [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]
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