Southern Norfolk Ridge, West Norfolk Ridge, Middlesex and King Banks, Three Kings Islands, and north-eastern North Island as far south as White Island, from 14-1216m
Type Data:
180 metres, S of Great Island, Three Kings Islands, NZ, (holotype)
Powell, A.W.B. 1979New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.78)
Finlay, H. 1926 A Further Commentary on New Zealand Molluscan Systematics, Transactions and Proceedings of the Royal Society of New Zealand, 57 (p.364) Original Description