original description
Ancey, C. F. (1904). Report on semi-fossil land shells found in the Hamakua District, Hawaii. <em>Journal of Malacology.</em> 11(3): 65-71, pl. 5., available online at https://www.biodiversitylibrary.org/page/16099619
page(s): 70, pl. 5, figs. 20-21 [details]
additional source
Cowie, R. H., Evenhuis, N. L. & Christensen, C. C. (1995). <i>Catalog of the Native Land and Freshwater Molluscs of the Hawaiian Islands</i>. vi + 248 pp. [3 June]. Leiden (Backhuys Publishers).
page(s): 86 [details]
From editor or global species database
Type locality Palihoukapapa, on the Hamakua slope of Mauna-Kea, Kawaii [= Hawaii], at an elevation of 4,000 feet [details]