Species Images
Kaipara Harbour, Northland. 75mm
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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

Cyclomactra ovata (Gray, 1843)

Classification:Bivalvia - Heterodonta - Veneroida
Family:MACTRIDAE: MACTRINAE
Size/Grows to:Length 80mm, Height 62mm
Distribution:North, South and Chatham Islands. Buried deeply in soft mud
Geographical Range:ACFME.
References and Publications:
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.413)
  • Willan, R.C. Sep/1966: Notes of Interest: Mactra ovata, Poirieria, 3(4) (p.56)