MolluscaBase name details
original description
(of Helix extensa O. F. Müller, 1774) Müller, O. F. (1773-1774). Vermium terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia. <em>Havniæ et Lipsiæ.</em> Vol. 1, Pars Ima: 1-136 [1773]; Pars Altera: 1-72 + index 8 pp. [1774]. Havniæ (Copenhagen) & Lipsiæ (Leipzig), Heineck & Faber., available online at https://www.biodiversitylibrary.org/item/50344
page(s): 60 [details]
basis of record
Richardson, L. (1983). Bradybaenidae: Catalog of species. <em>Tryonia.</em> 9: 1-253., available online at https://www.biodiversitylibrary.org/page/57458375
page(s): 131 [details]