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Taxonomy
Family:
THYASIRIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Lucinida (Order)
> Thyasiroidea (Superfamily)
> Thyasiridae (Family)
> Leptaxinus (Genus)
> cookianus (Species)
Genus Synonyms:
=Thyasira (Leptaxinus) Verrill & Bush, 1898
Images: Leptaxinus cookianus (Fleming, 1950)
Collected 1 Sep 1951, E of D'Urville Island, Cook Strait, NZ (M.008079). 1.1mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Collected 1 Sep 1951, E of D'Urville Island, Cook Strait, NZ (M.008079). 1.1mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family:
THYASIRIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Lucinida (Order)
> Thyasiroidea (Superfamily)
> Thyasiridae (Family)
> Leptaxinus (Genus)
> cookianus (Species)
Genus Synonyms:
=Thyasira (Leptaxinus) Verrill & Bush, 1898
Details: Leptaxinus cookianus (Fleming, 1950)
Size/Grows to:
Width 1mm, Height 1.1mm
Distribution:
North-eastern and south-western North Island, northern and south-western South Island, Chatham Islands and Chatham Rise. From about 15 metres to over 250 metres
Geographical Range:
ACFM
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.387)
  • Fleming, C.A. 1950 New Zealand Recent Thyasiridae (Mollusca), Transactions and Proceedings of the Royal Society of New Zealand, 78(2) (p.252) 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
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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