MolluscaBase name details
original description
Boettger, O. (1881). Die <i>Pupa</i>-Arten Oceaniens. <em>Conchologische Mittheilungen.</em> 1 (4): 45-72, pl. 10-12. Cassel (Th. Fischer)., available online at https://www.biodiversitylibrary.org/page/15865790
page(s): 47-49; note: Misspelled as Ptychochylus on pg. 48. [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): 134 [details]