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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 - Hypsogastropoda - Family: Rissoinidae

Rissoinidae

 

Genus: Apataxia

 
Apataxia cerithiiformis Tryon, 1887 (=miltozona Tomlin)
Kermadec Islands [K.]
 

Genus: Rissoina

 
Rissoina achatina Odhner, 1924
Height 6.2mm, Width 2.2mm, Endemic
Northland to Bay of Plenty and off East Cape [AE.]
 
Rissoina achatinoides Powell, 1937
Height 4.8mm, Width 1.8mm, Endemic
Off North Cape [AE.]
 
Rissoina anguina Finlay, 1927
Height 5.5mm, Width 2.5mm, Endemic
Northland to Mahia Peninsula [ACE.]
 
Rissoina aupouria Powell, 1937
Height 8.5mm, Width 3.5mm, Endemic
Off Three Kings Islands [AE.]
 
Rissoina chathamensis (Hutton, 1873)
Height 7.5mm, Endemic
Throughout NZ, Stewart and Chatham Islands [ACFME.]
 
Rissoina costata A.Adams, 1853
Kermadec Islands [K.]
 
Rissoina fictor Finlay, 1930
Height 5.6mm, Width 1.9mm, Endemic
Off Northland to Bay of Plenty [AE.]
 
Rissoina fucosa Finlay, 1930
Height 4.8mm, Width 2.0mm, Endemic
Off Northland to East Cape [AE.]
 
Rissoina larochei Finlay, 1930
Height 2.9mm, Width 1.3mm, Endemic
Northland [AE.]
 
Rissoina manawatawhia Powell, 1937
Height 3.7mm, Width 1.4mm, Endemic
Off Three Kings Islands [AE.]
 
Rissoina powelli Finlay, 1930
Height 7.9mm, Width 3.0mm, Endemic
Off Poor Knights Islands [AE.]
 
Rissoina zonata Suter, 1909
Height 11.5mm, Width 4.5mm, Endemic
Northland to Cape Runaway [AE.]