MolluscaBase taxon details
original description
(of Helix obserata R. T. Lowe, 1852) Lowe, R. T. (1852). Brief diagnostic notices of new Maderan land shells. <em>The Annals and Magazine of Natural History.</em> (2) 9 (50): 112-120; (2) 9 (52): 275-279. London [1 February; 1 April]., available online at https://www.biodiversitylibrary.org/page/2362893
page(s): 118-119 [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]