Original description: Odhner N.H. (1924). Papers from Dr. Th. Mortensen's Pacific Expedition 1914–1916. XIX. New Zealand Mollusca. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjobenhavn. 77: 1-90, pls 1-2., available online at https://www.biodiversitylibrary.org/page/27905956
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