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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
Mollusca (Phylum) > Gastropoda (Class) > Caenogastropoda (Subclass) > Littorinimorpha (Order) > Littorinoidea (Superfamily) > Zerotulidae (Family)
Zerotulidae
 
Genus: Triliratamap >
Trilirata triregis Warén & Hain, 1996
Height 2.8mm, Width 2.8mm, Endemic
NW of Three Kings Islands, 155-800 metres [A]
Genus: Zerotulamap >
Zerotula bicarinata (Suter, 1908)
Height 0.5mm, Width 1.5mm, Endemic
Off central North Island, South, Stewart and Snares Islands [AFAn]
Zerotula coronata Warén & Hain, 1996
Diameter 1.3mm, Endemic
North of New Zealand, around Three Kings Islands, 100-790 metres [A]
Zerotula hedleyi (Mestayer, 1916)
Height 0.5mm, Width 1.0mm, Endemic
Off Three Kings Islands [A]
Zerotula nummaria Powell, 1940
Height 0.5mm, Width 1.3mm, Endemic
Off Northland. Also recently recorded from the Chatham Islands [AM]
Zerotula triangulata Powell, 1937
Height 0.55mm, Width 1.1mm, Endemic
Off Three Kings Islands [A]