MolluscaBase name details
original description
(of Helix paradoxa L. Pfeiffer, 1844) Philippi, R. A. (1842-1850). <i>Abbildungen und Beschreibungen neuer oder wenig gekannter Conchylien unter Mithülfe mehrerer deutscher Conchyliologen</i>. Cassel, T. Fischer: Vol. 1: 1-20 [1842], 21-76 [1843], 77-186 [1844], 187-204 [1845]; Vol. 2: 1-64 [1845], 65-152 [1846], 153-232 [1847] ; Vol. 3: 1-50 [1847], 51-82 [1848], 1-88 [1849], 89-138 [1850]. , available online at http://www.biodiversitylibrary.org/item/41582
page(s): vol. 1, 153 [details]
basis of record
Pilsbry, H. A. (1891-1892). <i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 2, Pulmonata. Vol. 7: Helicidae, vol.5. pp 1-225, pls 1-61. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-64, pls. 1-15, Aug. 3, 1891; pp. 65-128, pls. 16-30, Nov. 3, 1891; pp. 129-192, pls. 31-45, Jan. 30, 1892; pp. 193-225, pls. 46-61, Apr. 25, 1892]. , available online at https://biodiversitylibrary.org/page/1102230
page(s): 102, pl. 22, figs. 12-14 [details]