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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 (Phylum) > Mollusca (Subphylum) > Vetigastropoda (Subclass) > Trochida (Order) > Trochoidea (Superfamily) > Calliostomatidae (Family) > Venustatrochus (Genus)
Genus: Venustatrochusmap >
Venustatrochus eclectus Marshall, 2016
Width 24.1mm, Height 23.7mm
Kermadec Ridge, Three Kings Rise, Reinga Ridge, Aotea Seamount, southeast North Island, Chatham Rise, Louisville Ridge and Macquarie Ridge, 750-1287 metres [K.A]
Venustatrochus galateae Marshall, 2016
Height 29mm, Diameter 28mm
West Norfolk Ridge, 521-539 metres [K.]
Venustatrochus youngi Marshall, 2016
Height 41.2mm, Diameter 40.2mm
Eastern Chatham Rise, east of Chatham Islands, 900-1200 metres [M]