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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
E =
Endemic
I =
Introduced
Bivalvia - Autobranchia - Ostreida - Family: Ostreidae

Ostreidae

 

Genus: Ostrea

 
Ostrea capsa Fischer von Waldheim, 1807 (=aupouria Dinamani, =stentina Payraudeau)
Length 45mm, Width 30mm, Weakly sculptured, and found in lower tidal zone than S.glomerata
Northland to Raglan and Hauraki Gulf [AC]
Ostrea chilensis Philippi in Küster, 1844 (=charlottae Finlay, =heffordi Finlay, =lutaria Hutton)
Length 80mm, Width 75mm, Bluff Oyster
North, South, Stewart and Chatham Islands [ACFM]

Ostreidae: Crassostreinae

 

Genus: Magallana

 
Magallana gigas (Thunberg, 1793)
Length 200mm, Width 85mm, Pacific Oyster. Introduced
North Island and top of South Island [ACI.]

Ostreidae: Saccostreinae

 

Genus: Saccostrea

 
Saccostrea glomerata (Gould, 1850) (=commercialis Iredale, =cucullata Born)
Length 80mm, Width 55mm, Northern Rock Oyster
Northern half of North Island [AC]