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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 - Caenogastropoda - Sorbeoconcha - Family: Siliquariidae

Siliquariidae

 

Genus: Stephopoma

 
Stephopoma roseum (Quoy & Gaimard, 1834)
Length 35mm
Northland to Hauraki Gulf. Often in clumps [ACE.]

Genus: Tenagodus

 
Tenagodus maoria (Powell, 1940)
Length 50mm
Northland to Cook Strait [ACE.]
Tenagodus weldii (Tenison Woods, 1876)
Length 50mm, Corkscrew Shell
North Island and Chatham Islands [ACME.]