Roseaplagis mortenseni explained

Roseaplagis mortenseni is a species of sea snail in the family Trochidae, the top snails. The shell grows to a length of 7 mm. This marine species occurs off New Zealand, the Antipodes Islands and the Bounty Islands.

References

• 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, 2 pls.
• Dell, R. K. (1956). The archibenthal Mollusca of New Zealand. Dominion Museum Bulletin. 18: 1-235.
• Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells. Collins, Auckland 500p (p. 56)
• Marshall, B.A. 1998: The New Zealand Recent species of Cantharidus Montfort, 1810 and Micrelenchus Finlay, 1926 (Mollusca: Gastropoda: Trochidae). Molluscan Research 19: 107-156 (p. 144)