MolluscaBase taxon details
original description
(of Helix (Placentula) 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 [details]
original description
(of Geomitra (Disculella) Pilsbry, 1895) Pilsbry, H. A. (1893-1895). <i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 2, Pulmonata. Vol. 9: Helicidae, Vol. 7, Guide to the study of Helices. pp i-xlviii, 1-366, pls 1-71. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-48, pls 1-14, 16 Nov 1893; pp. 49-112, pls 15-28, 19 Mar 1894; pp. 113-160, pls 29-40, 27 Jul 1894; pp. 161-366, pls 41-71, i-xlviii, 2 Feb 1895; index 1-126, April 1895]. , available online at https://www.biodiversitylibrary.org/page/1102607 page(s): 243 [details]
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