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Taxonomy
Family:
VENERIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Venerida (Order)
> Veneroidea (Superfamily)
> Veneridae (Family)
> Tawera (Genus)
> spissa (Species)
Genus Synonyms:
=Plurigens Finlay, 1930
Synonymised Names:
=Chamelea spissa (Deshayes, 1835)
=Chione gibbosa Hutton, 1873
=Venus (Murcia) scansilis Römer, 1860
=Venus crassa Quoy & Gaimard, 1835
=Venus denticulata Quoy & Gaimard, 1835
=Venus mesodesma Quoy & Gaimard, 1835
=Venus spissa Deshayes, 1835
=Venus violacea Quoy & Gaimard, 1835
Images: Tawera spissa (Deshayes, 1835)
Commonly washes up on ocean beaches. 25mm
Taxonomy
Family:
VENERIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Venerida (Order)
> Veneroidea (Superfamily)
> Veneridae (Family)
> Tawera (Genus)
> spissa (Species)
Genus Synonyms:
=Plurigens Finlay, 1930
Synonymised Names:
=Chamelea spissa (Deshayes, 1835)
=Chione gibbosa Hutton, 1873
=Venus (Murcia) scansilis Römer, 1860
=Venus crassa Quoy & Gaimard, 1835
=Venus denticulata Quoy & Gaimard, 1835
=Venus mesodesma Quoy & Gaimard, 1835
=Venus spissa Deshayes, 1835
=Venus violacea Quoy & Gaimard, 1835
Details: Tawera spissa (Deshayes, 1835)
Size/Grows to:
Width 27mm, Height 22mm
Distribution:
North, South, Stewart and Chatham Islands
Geographical Range:
ACFM
Notes:
Marine, Common on sandy beaches. Highly variable patterns, usually zigzags or streaks
Distribution Map
 
References and Publications

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
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