MolluscaBase taxon details
original description
(of Helix cardonae Hidalgo, 1867) Hidalgo, J. G. (1867). Diagnose d'une espèce nouvelle d'Helix. <em>Journal de Conchyliologie.</em> 15: 209-210, pl. 12., available online at https://www.biodiversitylibrary.org/page/15382141 [details]
original description
(of Helix nyeli Mittre, 1842) Mittre, H. (1842). Description de quatre coquilles nouvelles. <em>Annales des Sciences Naturelles, Zoologie.</em> (2) 18: 188-191. Paris.
page(s): 190 [details]
basis of record
Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017. [details]