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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 - Hypsogastropoda - Family: Rastodentidae

Rastodentidae

 

Genus: Rastodens

 
Rastodens electra (Oliver, 1915)
Kermadec Islands [K.E.]
 
Height 1.66mm, Width 0.9mm
Lower South Island, Foveaux Strait, Stewart and Snares Islands [FAnE.]
 
Rastodens puerilis Ponder, 1966
Height 1.03mm, Width 0.6mm
North, South and Stewart Island [ACFE.]
 

Genus: Tridentifera

 
Height 0.9mm, Width 0.6mm
Off Three Kings Islands to Northland [AE.]
 
Height 1.6mm, Width 1.0mm
Off Three Kings Islands [AE.]