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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
    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 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