Powell, A. W. B., 1958. Mollusca of the Kermadec Islands Part 1. Records of the Auckland Institute and Museum, 5 (1 & 2 ): 65 -85 .
New Species-Group Names:
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bruuni Powell, 1958. p. 84. pl. 10. f. 3.
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raoulensis Powell, 1958. p. 83. pl. 9. f. 1.