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Taxonomy
Family:
ZEROTULIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Littorinoidea (Superfamily)
> Zerotulidae (Family)
> Zerotula (Genus)
> hedleyi (Species)
Synonymised Names:
=Discohelix hedleyi Mestayer, 1916
Images: Zerotula hedleyi (Mestayer, 1916)
Holotype of Discohelix hedleyi, collected 29 May 1914, W of Cape Reinga '15' S of Big King', NZ (M.001750). 1mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Holotype of Discohelix hedleyi, collected 29 May 1914, W of Cape Reinga '15' S of Big King', NZ (M.001750). 1mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Holotype of Discohelix hedleyi, collected 29 May 1914, W of Cape Reinga '15' S of Big King', NZ (M.001750). 1mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family:
ZEROTULIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Littorinoidea (Superfamily)
> Zerotulidae (Family)
> Zerotula (Genus)
> hedleyi (Species)
Synonymised Names:
=Discohelix hedleyi Mestayer, 1916
Details: Zerotula hedleyi (Mestayer, 1916)
Size/Grows to:
Height 0.5mm, Width 1.0mm
Distribution:
Off Three Kings Islands
Geographical Range:
A
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.249)
  • Mestayer, M. 1916 Preliminary list of Mollusca from dredgings taken off the northern coasts of New Zealand., Transactions of the New Zealand Institute, 48 (p.125) Original Description

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
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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