MolluscaBase name details
original description
(of Helix dimera Jonas, 1846) Jonas J.H. (1846). Molluskologische Beiträge. <em>Abhandlungen aus dem Gebiete der Naturwissenschaften herausgegeben von dem Naturwissenschaftlichen Verein in Hamburg.</em> 1: 99-130, pls 7-11., available online at https://www.biodiversitylibrary.org/page/33685989
page(s): 123, pl. 11, fig. 19, 19a; note: refers to Proc. Zool Soc London 1843, but no description of this species is there. However, H. dimera Jonas is listed as variety β of Helix jonasi L. Pfeiffer, 1846: 126. See Additional Source. [details]
basis of record
Möllendorff, O. F. von. (1898). Verzeichnis der auf den Philippinen lebenden Landmollusken. <em>Abhandlungen der Naturforschenden Gesellschaft zu Görlitz.</em> 22: 26-208., available online at https://biodiversitylibrary.org/page/58468236
page(s): 122; note: Moellendorff (1898:122) lists mutatio basizona Mlldff., mutatio anozona Mlldff., and mutatio obscura Mlldff. with no descriptions or comments. These are considered nomen nudum here. [details]