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Taxonomy
Family:
GAIMARDIIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Gaimardioidea (Superfamily)
> Gaimardiidae (Family)
> Kidderia (Genus)
> bicolor (Species)
Genus Synonyms:
=Costokidderia Finlay, 1926
=Cyamium (Cyamionema) Melvill & Standen, 1914
=Kidderia (Costokidderia) Finlay, 1926 accepted, alternate representation
=Kidderia (Cyamionema) Melvill & Standen, 1914 accepted, alternate representation
=Kidderia (Kidderia) Dall, 1876 accepted, alternate representation
Synonymised Names:
=Cyamium commune Thiele, 1912
=Kidderia hamiltoni Finlay, 1926
=Modiolarca bicolor E. von Martens, 1885
=Modiolarca pusilla Hedley, 1916
Images: Kidderia bicolor (Martens, 1885)
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Taxonomy
Family:
GAIMARDIIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Gaimardioidea (Superfamily)
> Gaimardiidae (Family)
> Kidderia (Genus)
> bicolor (Species)
Genus Synonyms:
=Costokidderia Finlay, 1926
=Cyamium (Cyamionema) Melvill & Standen, 1914
=Kidderia (Costokidderia) Finlay, 1926 accepted, alternate representation
=Kidderia (Cyamionema) Melvill & Standen, 1914 accepted, alternate representation
=Kidderia (Kidderia) Dall, 1876 accepted, alternate representation
Synonymised Names:
=Cyamium commune Thiele, 1912
=Kidderia hamiltoni Finlay, 1926
=Modiolarca bicolor E. von Martens, 1885
=Modiolarca pusilla Hedley, 1916
Details: Kidderia bicolor (Martens, 1885)
Size/Grows to:
Width 5mm, Height 3.7mm
Distribution:
Macquarie Islands. Also South Georgia, Kerguelen and Heard Islands. Intertidal under stones and among seaweed
Geographical Range:
AnE.
Notes:
Marine, Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.399)

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