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Species List for Family: Trochidae
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Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Subclass) > Trochida (Order) > Trochoidea (Superfamily) > Trochidae (Family)
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  • Family: Trochidae

  • 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 8mm, 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 50mm, Width 38mm, Opal Top Shell, Marine, Endemic
    North, South, Stewart and Chatham Islands. Littoral to moderate depths ACFME.
  • Cantharidus puysegurensis (Powell, 1939)
    Height 5.0mm, Width 5.5mm, Marine, Endemic, Distinct flattened base and wide umbilicus
    South Island CFE.
  • Cantharidus turneri (Powell, 1939)
    Width 9mm, Height 8mm, Marine, Endemic
    Stewart Island. On seaweed covered rocks FE.
  • 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 in Dieffenbach, 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 tesselatus (A. Adams, 1851)
    Height 9mm, Width 8mm, Marine, Endemic
    North, South, Stewart and Chatham Islands ACFE.
  • Roseaplagis artizona A. Adams, 1853
    Width 6mm, Height 8mm, Marine, Endemic
    Southern North Island to Stewart Island CFE.
  • Roseaplagis caelatus Hutton, 1884
    Height 6.0mm, Width 5.0mm, Marine, Endemic
    Otago to Stewart Island, Snares Islands FE.
  • Roseaplagis mortenseni (Odhner, 1924)
    Width 6mm, Height 7mm, 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 30mm, Height 28mm, Marine, Endemic
    North, South, Stewart and Chatham Islands ACFME.
  • Diloma aridum (Finlay, 1927)
    Width 17mm, Height 19mm, Marine, Endemic, Purplish-black with pale yellow flecks
    Throughout New Zealand. Chatham and Auckland Islands. On sheltered mid-tidal rocks ACFMAnE.
  • Diloma bicanaliculatum (Dunker in Philippi, 1844)
    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 26mm, Width 24mm, Marine
    North, South, Stewart, Chatham, Three Kings and Auckland Islands. On kelp at mid/high tide ACFMAn
  • Diloma subrostratum (Gray in Yate, 1835)
    Width 25mm, Height 25mm, Mudflat Top Shell, Marine, Endemic
    North, South and Stewart Island ACFE.
  • Diloma zelandicum (Quoy & Gaimard, 1834)
    Width 25mm, Height 20mm, Marine, Endemic
    North, South and Stewart Island ACFE.
  • Stomatella oliveri (Iredale, 1912)
    Height 3.5mm, Length 11.75mm, Width 6.5mm, Marine, Endemic
    Raoul Island, Kermadec Islands, living among rocks near low water to 45 metres KE.
  • Clanculus atypicus Iredale, 1912
    Height 8mm, Width 9.5mm, Marine, Endemic
    Kermadec Islands, low tide to 15 metres, under stones KE.
  • Clanculus peccatus (Finlay, 1927)
    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)
    Height 6mm, Width 8mm, Marine, Endemic
    Northland to East Cape. Rare, under stones 5-20 metres, and in beach drift AE.
  • Coelotrochus chathamensis (Hutton, 1873)
    Height 7mm, Width 9mm, 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)
    Height 5.5mm, Width 6mm, 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)
    Height 101mm, Width 102mm, 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)
    Height 5.5mm, Width 7.5mm, Marine, Recent, Fossil, Endemic
    North, South, Stewart and Chatham Islands. Shallow water to about 100 fathoms ACFMR.Fo.E.
  • Monilea incerta Iredale, 1912
    Marine, Endemic
    Kermadec Islands KE.
  • Zethalia zelandica (Hombron & Jacquinot, 1855)
    Width 26mm, Height 15mm, Wheel Shell, Marine, Endemic
    North, South, Stewart and Chatham Islands. Lower littoral to sublittoral ACFME.
Key to Geographical Ranges
NZ Map showing Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species. They have been adopted to give an approximation of the range of each species within New Zealand.
K=
Kermadec Islands
A=
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
C=
Cookian - Lower North Island and the northern part of the South Island
F=
Forsterian - Otago, Fiordland and Stewart Island
M=
Moriorian - Chatham Islands, Pitt Island
An=
Antipodean - Subantarctic Islands of New Zealand
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
E =
Endemic
I =
Introduced
R =
Recent
Sf =
Subfossil
Fo =
Fossil