MolluscaBase taxon details
original description
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): 364, pl. 92, fig. 3 [details]