Mesopeplum convexum (Quoy & Gaimard, 1835) Width 55mm, Height 50mm Marine, Native - Endemic Middlesex and King Banks, Three Kings Islands, off Cape Reinga, north-eastern and south-western North Island, northern and southern South Island, Stewart, Snares and Chatham Islands and Mernoo Bank, from 0-274m |
Pseudamussium challengeri (E.A. Smith, 1891) Height 8.1mm Marine, Native - Non-endemic Northern North Island and Challenger Plateau. Also South eastern Australia, Tasman Sea, from 572-1029m |