original description
Smith, E. A. (1893). Descriptions of new species of land-shells from Borneo. <em>Journal of the Linnean Society, Zoology.</em> 24(154): 341–352., available online at https://biodiversitylibrary.org/page/31652769
page(s): 344, pl. 25, fig. 7 [details]
additional source
Solem, A. (1964). A collection of non-marine mollusks from Sabah, Malaysia. <em>Sabah Society Journal.</em> 2(1/2): 1-40.
page(s): 11 [details] Available for editors [request]
From editor or global species database