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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
Gastropoda - Vetigastropoda - (Vetigastropoda) - Family: Pleurotomariidae

Pleurotomariidae

 

Genus: Bayerotrochus

 
Bayerotrochus tangaroana (Bouchet & Métivier, 1982)
Height 58mm, Width 69mm
Three Kings Rise, 841 metres. Lau Ridge, 547-646 metres [K.A]