MolluscaBase taxon details
original description
(of Helix frequens Mousson, 1859) Mousson, A. (1859). Coquilles terrestres et fluviatiles, recueillies dans l'Orient par M. le Dr. Alex. Schläfli. Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich, 4 (1): 12-36; 4 (3): 253-297. Zürich. [reprinted 1859 with alterations: 71 pp.], available online at https://www.biodiversitylibrary.org/page/47188753
page(s): 254 [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]