MolluscaBase name details
original description
(of Helicostyla (Calocochlea) aopta Clench & Archer, 1933) Clench, W. J. & Archer, A. F. (1933). Land mollusks from the islands of Mindoro and Lubang, Philippines. <em>Papers of the Michigan Academy of Science, Arts and Letters.</em> 17: 535-552, pls. 57-58.
page(s): 542-543, pl. 57, fig. 3 [details] Available for editors [request]
basis of record
Bartsch, P. (1933). The land shells of the genus <i>Obba</i> from Mindoro Province, Philippine Islands. <em>Bulletin of the United States National Museum.</em> 100(6): 343-371, pls. 88-93 [1 April 1933]., available online at https://biodiversitylibrary.org/page/7692057
page(s): 385 [details]