MolluscaBase taxon details
original description
(of Helix langi Rossmässler, 1857) Rossmässler, E. A. (1857). Diagnoses novorum Heliceorum. <em>Malakozoologische Blätter.</em> 4 (19): 38-41. Cassel [April]., available online at https://biodiversitylibrary.org/page/15865283
page(s): 41 [details]
original description
(of Helix phocaea J. R. Roth, 1856) Roth, J. R. (1856). Ueber einige griechische Heliceen. <em>Malakozoologische Blätter.</em> 3: 1-7. pl. 1. Cassel., available online at https://www.biodiversitylibrary.org/page/15864968
page(s): 1, pl. 1, fig. 1-3 [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]