Trichosirius cavatocarinatus (Laws, 1940) Height 17.5mm, Width 11.2mm Marine, Native - Endemic Western Cook Strait, eastern and south-western South Island, and Stewart Island. 55-550 metres CF |
Trichosirius inornatus (Hutton, 1873) Height 22mm, Width 14mm Marine, Native - Endemic North, South, Stewart and Chatham Islands, from low tide to 200 metres ACFM |
Trichosirius octocarinatus Powell, 1931 Height 6.5mm, Width 4.3mm Marine, Native - Endemic South-western North Island, eastern and south-western South Island, Stewart, Snares, Auckland, Campbell and Bounty Islands, and Pukaki Rise. 0-550 metres CFAn |