original description
Ancey, C. F. (1904). On some non-marine Hawaiian Mollusca. <em>Proceedings of the Malacological Society of London.</em> 6(2): 117-128, pl. 7., available online at https://biodiversitylibrary.org/page/15176234
page(s): 127, pl. 7, figs. 22-23 [details]
additional source
Richling, I. (2011). Comment on the Hawaiian species of Helicinidae. In: Severns, M.: Shells of the Hawaiian Islands [Part 2]. The Land Snails. The endemic land and freshwater species and their described variants illustrated by 3117 images and 363 maps on 186 plates: 40-63 [incl. 11 pls.], Hackenheim (ConchBooks).
page(s): 58, pl. 10, fig. 4 [details] Available for editors [request]
From editor or global species database
Type locality Oahu [details]