Cantharidus antipodum (Hombron & Jacquinot, 1854) Width 12mm, Height 10mm Marine, Endemic South Island, Otago to Stewart Island, Snares, Campbell, Auckland and Antipodes Islands. Under kelp holdfasts FAnE. |
Cantharidus capillaceus (Philippi, 1848) Height 28mm, Width 20mm Marine Auckland, Campbell and Antipodes Islands An |
Cantharidus dilatatus (G.B. Sowerby II, 1870) Height 9mm, Width 8mm Marine, Endemic North, South, Stewart and Chatham Islands. On kelp at low tide to about 5 metres ACFME. |
Cantharidus festivus (B.A. Marshall, 1998) Height 6.2mm Marine, Endemic Off Three Kings Islands and off Cape Reinga, Far North, 13-88 metres AE. |
Cantharidus fulminatus (Hutton, 1873) Width 8mm, Height 8mm Marine, Endemic Chatham Islands, intertidal to shallow water ME. |
Cantharidus opalus (Martyn, 1784) Height 53mm, Width 39mm Opal Top Shell, Marine, Endemic North, South, Stewart and Chatham Islands. Littoral to moderate depths ACFME. |
Cantharidus puysegurensis (Powell, 1939) Width 5.5mm, Height 5.0mm Marine, Endemic, Distinct flattened base and wide umbilicus South Island CFE. |
Cantharidus turneri (Powell, 1939) Width 9mm, Height 8mm Marine, Endemic Southland, Stewart Island, Snares, Auckland and Campbell Islands. On seaweed covered rocks FAnE. |
Micrelenchus burchorum B.A. Marshall, 1998 Height 26mm, Width 16mm Marine, Endemic Off Three Kings Islands, 5-33 metres on algae. Middlesex Bank and King Bank, 7-805 metres AE. |
Micrelenchus huttonii (E.A. Smith, 1876) Height 11.5mm Marine, Endemic Bay of Islands south, and Stewart Island. 0-7 metres, Inhabits sheltered waters, especially Zostera, sea-grass, on tidal flats and sheltered rock pools ACFE. |
Micrelenchus purpureus (Gmelin, 1791) Height 35mm, Width 21mm Marine, Endemic North and South Island. On seaweed at low tide to about 120 metres ACE. |
Micrelenchus sanguineus (Gray, 1843) Height 8mm, Width 7mm Marine, Endemic North, South and Stewart Island ACFE. |
Micrelenchus tenebrosus A. Adams, 1853 Height 11mm, Width 10mm Marine, Endemic, Coastal, open water on seaweed and under kelp holdfasts Southern North Island, South and Stewart Island. Under stones in coastal regions ACFE. |
Micrelenchus tessellatus (A. Adams, 1851) Height 9mm, Width 8mm Marine, Endemic North, South, Stewart and Chatham Islands ACFE. |
Roseaplagis artizona A. Adams, 1853 Height 8mm, Width 6mm Marine, Endemic Southern North Island to Stewart Island CFE. |
Roseaplagis caelatus Hutton, 1884 Height 6mm, Width 5mm Marine, Endemic Otago to Stewart Island, Snares Islands FE. |
Roseaplagis mortenseni (Odhner, 1924) Height 7mm, Width 6mm Marine, Endemic South Island. From Otago south to Stewart Island. Chatham, Auckland, Campbell, Antipodes and Bounty Islands. In beach drift. Living at 10-244 metres CFMAnE. |
Roseaplagis rufozona A. Adams, 1853 Height 8mm, Width 7mm Marine, Endemic North Island to Cook Strait. In shell sand ACE. |
Fossarina rimata (Hutton, 1884) Width 5mm, Height 4mm Marine, Endemic Northern half of North Island, to Mahia ACE. |
Diloma aethiops (Gmelin, 1791) Width 38mm, Height 35mm Marine, Endemic North, South, Stewart and Chatham Islands ACFME. |
Diloma aridum (Finlay, 1926) Height 19mm, Width 17mm Marine, Endemic, Purplish-black with pale yellow flecks Throughout New Zealand. Chatham and Auckland Islands. On sheltered mid-tidal rocks ACFMAnE. |
Diloma bicanaliculatum (Dunker, 1845) Width 18mm, Height 17mm Marine, Endemic North, South and Stewart Island. Under stones at low tide ACFE. |
Diloma coracinum (Philippi, 1851) Width 12mm, Height 12mm Marine, Endemic North and upper South Island ACFE. |
Diloma durvillaea Spencer, Marshall & Waters, 2009 Width 13mm, Height 12mm Marine, Endemic South Island. From Lyttelton Harbour south, under holdfasts & on blades of Durvillaea antarctica & adjacent rocks near low tide level CFAnE. |
Diloma nigerrimum (Gmelin, 1791) Height 30mm, Width 26mm Marine North, South, Stewart, Chatham, Three Kings and Auckland Islands. On kelp at mid/high tide ACFMAn |
Diloma subrostratum (Gray, 1835) Width 30mm, Height 30mm Mudflat Top Shell, Marine, Endemic North, South and Stewart Island ACFE. |
Diloma zelandicum (Quoy & Gaimard, 1834) Width 32mm, Height 24mm Marine, Endemic North, South and Stewart Island ACFE. |
Stomatella oliveri (Iredale, 1912) Length 11.75mm, Width 6.5mm, Height 3.5mm Marine, Endemic Raoul Island, Kermadec Islands, living among rocks near low water to 45 metres KE. |
Clanculus atypicus Iredale, 1912 Width 9.5mm, Height 8mm Marine, Endemic Kermadec Islands, low tide to 15 metres, under stones KE. |
Clanculus peccatus (Finlay, 1926) Height 12mm, Width 12mm Marine, Endemic Northland to East Cape. In beach drift and below low tide to over 25 metres AE. |
Clanculus persicus Habe & Shikama, 1964 Width 25mm Marine Off Choshi, Chiba Prefecture, Honshu, Japan, and off Kermadec Islands 235-280 metres K |
Coelotrochus carinatus (B.A. Marshall, 1998) Width 4.3mm, Height 3.8mm Marine, Endemic Off Three Kings Islands, off Cape Reinga. Off White Island AE. |
Coelotrochus carmesinus (Webster, 1908) Width 8mm, Height 6mm Marine, Endemic Northland to East Cape. Rare, under stones 5-20 metres, and in beach drift AE. |
Coelotrochus chathamensis (Hutton, 1873) Width 9mm, Height 7mm Marine, Endemic Southern North Island, Stewart, Chatham and southern Islands CFMAnE. |
Coelotrochus davegibbsi B.A. Marshall, 1998 Width 6.5mm Marine, Endemic Off Three Kings Islands 18-123 metres, and north of Cape Reinga 88 metres AE. |
Coelotrochus oppressus (Hutton, 1878) Width 6mm, Height 5.5mm Marine, Endemic Three Kings Islands, North Island to Mahia ACE. |
Coelotrochus polychromus B.A. Marshall, 1998 Width 5.9mm Marine, Endemic Off Three Kings Islands, 14-88 metres AE. |
Coelotrochus rex (B.A. Marshall, 1998) Width 5.8mm, Height 4.3mm Marine, Endemic Off Three Kings Islands, 102-440 metres AE. |
Coelotrochus tiaratus (Quoy & Gaimard, 1834) Width 18mm, Height 15mm Marine, Recent, Fossil, Endemic North, South and Stewart Island ACFR.Fo.E. |
Coelotrochus viridis (Gmelin, 1791) Width 30mm, Height 25mm Marine, Recent, Fossil, Endemic North, South, Stewart and Chatham Islands ACFMR.Fo.E. |
Tectus royanus (Iredale, 1912) Width 102mm, Height 101mm Marine, Endemic Raoul Island, Kermadec Islands, on rocks from low water to 6-8 metres, dead specimens to 29 metres KE. |
Trochus camelophorus Webster, 1906 Width 13mm, Height 11mm Marine, Endemic Off Three Kings Islands, Northland to East Cape. 0-228 metres and in beach drift AE. |
Antisolarium egenum (Gould, 1849) Width 7.5mm, Height 5.5mm Marine, Recent, Fossil, Endemic North, South, Stewart and Chatham Islands. Shallow water to about 100 fathoms ACFMR.Fo.E. |
Zethalia zelandica (Hombron & Jacquinot, 1855) Width 26mm, Height 15mm Wheel Shell, Marine, Endemic North, South, Stewart and Chatham Islands. Lower littoral to sublittoral ACFME. |