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Taxonomy
Family: Subfamily:
TROCHIDAE: TROCHINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Trochidae (Family)
> Trochinae (Subfamily)
> Coelotrochus (Genus)
> chathamensis (Species)
Genus Synonyms:
=Anthora Gray, 1857
=Chlorostoma (Neozelandia) Cossmann, 1918
=Thorista Iredale, 1915
=Thoristella Iredale, 1915
=Trochus (Anthora) Gray, 1857
=Trochus (Coelotrochus) P. Fischer, 1879
=Trochus (Thorista) Iredale, 1915
Synonymised Names:
=Calliostoma aucklandicum E.A. Smith, 1902
=Polydonta chathamensis Hutton, 1873
=Thoristella chathamensis (Hutton, 1873)
=Thoristella chathamensis benthicola Finlay, 1926
=Thoristella chathamensis cookiana Powell, 1934
=Trochus (Infundibulum) oppressus var. dunedinensis Suter, 1897
=Trochus oppressus var. dunedinensis Suter, 1907
Images: Coelotrochus chathamensis (Hutton, 1873)
(dunedinensis form) - Under rocks, Stewart Island, NZ. 9mm
(aucklandica form) - From Enderby Island, Auckland Islands. 8mm
Holotype of Thoristella chathamensis cookiana Powell, collected Jan 1927, Island Bay, Wellington, NZ (MA70765). © Auckland Museum (CC-BY)
Holotype of Thoristella chathamensis cookiana Powell, collected Jan 1927, Island Bay, Wellington, NZ (MA70765). © Auckland Museum (CC-BY)
Taxonomy
Family: Subfamily:
TROCHIDAE: TROCHINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Trochidae (Family)
> Trochinae (Subfamily)
> Coelotrochus (Genus)
> chathamensis (Species)
Genus Synonyms:
=Anthora Gray, 1857
=Chlorostoma (Neozelandia) Cossmann, 1918
=Thorista Iredale, 1915
=Thoristella Iredale, 1915
=Trochus (Anthora) Gray, 1857
=Trochus (Coelotrochus) P. Fischer, 1879
=Trochus (Thorista) Iredale, 1915
Synonymised Names:
=Calliostoma aucklandicum E.A. Smith, 1902
=Polydonta chathamensis Hutton, 1873
=Thoristella chathamensis (Hutton, 1873)
=Thoristella chathamensis benthicola Finlay, 1926
=Thoristella chathamensis cookiana Powell, 1934
=Trochus (Infundibulum) oppressus var. dunedinensis Suter, 1897
=Trochus oppressus var. dunedinensis Suter, 1907
Details: Coelotrochus chathamensis (Hutton, 1873)
Size/Grows to:
Width 9mm, Height 7mm
Distribution:
Southern North Island, Stewart, Chatham and southern Islands
Geographical Range:
CFMAnE.
Notes:
Marine, Endemic
Distribution Map
 
References and Publications
  • Marshall, B.A. 1998 A review of the Recent Trochini of New Zealand (Mollusca: Gastropoda: Trochidae), Molluscan Research, 19 (p.84)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.59)
  • Hutton, F.W. 1873 Catalogue of the Marine Mollusca of New Zealand, with diagnoses of the species, Dominion Museum (NZ) Original Description

*98 © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)

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