Trichosirius cavatocarinatus (Laws, 1940) Height 17.5mm, Width 11.2mm Marine, Endemic South Island, Snares, Auckland and Chatham Islands CFMAnE. |
Trichosirius inornatus (Hutton, 1873) Height 22mm, Width 14mm Marine, Endemic North, South, Stewart and Chatham Islands, from low tide ACFME. |
Trichosirius octocarinatus Powell, 1931 Height 6.5mm, Width 4.3mm Marine, Endemic Chatham, Bounty and Auckland Islands. Trawled MAnE. |