MolluscaBase taxon details
original description
(of Helix devia A. Gould, 1846) Gould, A.A. (1846). New species of Helix, from the Shells of the Exploring Expedition. Proceedings of the Boston Society of Natural History, 2: 165-167. Boston.
page(s): 165 [details]
original description
(of Helix baskervillei L. Pfeiffer, 1850) Pfeiffer, L. (1850). Descriptions of twenty-four new species of Helicea, from the collection of H. Cuming, Esq. <em>Proceedings of the Zoological Society of London.</em> 17 (197-198) [“1849”]: 126–131. London [30 June]., available online at https://www.biodiversitylibrary.org/page/12862210
page(s): 130 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]