MolluscaBase taxon details
original description
(of Helix intermedia C. Pfeiffer, 1828) Pfeiffer, C. (1821-1828). <i>Naturgeschichte deutscher Land- und Süsswasser-Mollusken</i>. Weimar. Abt. 1: i-x, 1-134, pls 1-8 [1821]; Abt. 2: i-viii, 1-40, pls 1-8 [1825]; Abt. 3: i-vi, 1-84, pls 1-8 [1828]. , available online at https://www.biodiversitylibrary.org/page/52682383
page(s): 18, Taf. IV. Fig. 17. 18. 19. [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]