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Key to 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 approxomation 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
Bivalvia - Heterodonta - Myoida - Family: Pholadidae

Pholadidae: Pholadinae

 

Genus: Barnea (Anchomasa)

 
Length 85mm, Height 30mm, Rock Borer
North, South, Stewart and Chatham Islands. Intertidal, boring into soft rock [ACFME.]

Pholadidae: Martesiinae

 

Genus: Pholadidea

 
Pholadidea acherontea Beu & Climo, 1974
Width 26mm, Height 17mm
North and South Island. Dredged around 35-600 metres [ACFE.]
Pholadidea suteri Lamy, 1926 (=spathulata Sowerby)
Width 52mm, Height 20mm
North and South Island. Intertidal, boring into soft rock [ACFE.]
Pholadidea tridens (Gray, 1843)
Length 28mm, Height 14mm
North, South and Chatham Islands [ACME.]