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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
Gastropoda - Vetigastropoda - Ancistrobasidae:
Ancistrobasidae
 
Genus: Ancistrobasismap >
Ancistrobasis dilecta Marshall, 1983
Width 2.5mm, Height 1.9mm, Endemic
Kermadec Islands, dead in pumice gravel, 366-402 metres, and off North Cape [K.A]
Genus: Calliobasismap >
Calliobasis miranda Marshall, 1983
Width 2.25mm, Height 2mm, Endemic
Off Three Kings Islands, 622 metres. Off Kermadec Islands, 82-100 metres [A]
Genus: Quinniamap >
Quinnia patula (Marshall, 1983)
Width 8.4mm, Height 5.6mm
Tasman Basin, 1760-1799 metres [C]