Species Images
In a low tidal rock pool, Doubtless Bay, Northland, NZ. 11mm
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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

Rissoina zonata Suter, 1909

Classification:Gastropoda - Caenogastropoda - Hypsogastropoda - Rissoinidae - Rissoina
Family:RISSOINIDAE
Size/Grows to:Height 11.5mm, Width 4.5mm
Distribution:Northland to Cape Runaway
Geographical Range:A
Notes:
Endemic. Usually white, but occasionally with a broad basal brown zone
 
References and Publications:
  • Gardner, N.W. Aug/1979: Rissoina from Northern Beaches, Poirieria, 10(3) (p.43)
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.107)

Note: Localities are approximate, and represent only some of the known localities for the species.