original description
Newcomb, W. (1861). Description of new shells. <em>Proceedings of the California Academy of Sciences.</em> (1)2: 91-94., available online at http://biodiversitylibrary.org/page/3837015
page(s): 93 [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): 127 [details]
From editor or global species database
Type locality Kauai, Insula Sandwichensis [details]