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Taxonomy
Family: Subfamily:
MACTRIDAE: MACTRINAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Venerida (Order)
> Mactroidea (Superfamily)
> Mactridae (Family)
> Mactrinae (Subfamily)
> Cyclomactra (Genus)
> tristis (Species)
Genus Synonyms:
=Mactra (Cyclomactra) Dall, 1895
Synonymised Names:
=Mactra rudis Hutton, 1873
=Mactra tristis Reeve, 1854 (original combination)
Images: Cyclomactra tristis (Reeve, 1854)
Kawhia Harbour, Waikato, NZ. 47mm. © rights reserved
Kawhia Harbour, Waikato, NZ. 47mm. © rights reserved
Taxonomy
Family: Subfamily:
MACTRIDAE: MACTRINAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Venerida (Order)
> Mactroidea (Superfamily)
> Mactridae (Family)
> Mactrinae (Subfamily)
> Cyclomactra (Genus)
> tristis (Species)
Genus Synonyms:
=Mactra (Cyclomactra) Dall, 1895
Synonymised Names:
=Mactra rudis Hutton, 1873
=Mactra tristis Reeve, 1854 (original combination)
Details: Cyclomactra tristis (Reeve, 1854)
Size/Grows to:
Width 60mm, Height 55mm
Distribution:
North Island as far north as Auckland, northern South Island as far south as Christchurch, and Chatham Islands. Intertidal, from 0m
Notes:
Marine, Native - Endemic, Buried in mud at low tide
Distribution Map
 
References and Publications

NZ Geographical Regions
Key to symbols used in Checklist.
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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