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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 - Caenogastropoda - Neogastropoda - Muricidae: Rapaninae
Muricidae: Rapaninae
 
Genus: Agnewiamap >
Agnewia tritoniformis (Blainville, 1833)
Height 29mm, Width 16mm
Northland to Auckland. Also Australia, Queensland to SA and Tasmania [A]
Genus: Dicathaismap >
Dicathais orbita (Gmelin, 1791) (=scalaris Menke)
Height 110mm, Width 70mm, White Rock Shell, Cart Rut Shell
Northland to northern South Island and Chatham Islands. Also Australia and Lord Howe Island [K.ACM]
Genus: Neothaismap >
Neothais smithi (Brazier, 1889)
Height 34mm, Width 22mm
Northland east coast to Mayor Island, Bay of Plenty. Also Lord Howe, Norfolk and Kermadec Islands [K.A]
Genus: Rapanamap >
Rapana venosa Valenciennes, 1847
Height 118mm, Width 85mm
In cray pots off Cape Maria van Diemen [A]