MolluscaBase name details
original description
Grateloup, J.-P. S. (1840). Mémoire descriptif sur plusieurs espèces de coquilles nouvelles ou peu connues de mollusques exotiques vivants, terrestres, fluviatilis et marins. <em>Actes de la Société Linnéenne de Bordeaux.</em> 11 (36): 389-455, pls 1-4. [dated 25 November 1840]., available online at https://www.biodiversitylibrary.org/page/35029678
page(s): 413, pl. 3, fig. 15 [details]
additional source
Möllendorff, O. F. von. (1887). Von den Philippinen. II. Die Insel Cebu. <em>Jahrbücher der Deutschen Malakozoologischen Gesellschaft.</em> 14: 235–283., available online at https://www.biodiversitylibrary.org/page/15886780#page/249/mode/1up
page(s): 256 [details]
additional source
Bartsch, P. (1918). Classification of the Philippine operculate land shells of the family Helicinidae, with a synopsis of the species and subspecies of the genus <i>Geophorus</i>. <em>Journal of the Washington Academy of Sciences.</em> 8 (20): 643-657 [4 December]., available online at https://biodiversitylibrary.org/page/2035705
page(s): 644 [details]