Dell, R.K., 1952. New species and genera of New Zealand land snails, with a revision of the genus Cavellia. Dominion Mus. Rec. Zool. 1(9): 87-97.
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Dell, R.K., 1956. The Archibenthal Mollusca of New Zealand. Dom. Mus. Bull. (No. 18), Nov 1956: 1-235. ≡
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