MolluscaBase taxon details
original description
(of Helicina dichroa Möllendorff, 1890) Möllendorff, O. F. von. (1890). Die Landschnecken-Fauna der Insel Cebu. <em>Bericht über die Senckenbergische Naturforschende Gesellschaft in Frankfurt-am-Main.</em> (1890): 189-292, pls 7-9., available online at https://biodiversitylibrary.org/page/9003882
page(s): 291, 292 [details]
basis of record
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]