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Taxonomy
Family:
RISSOINIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Rissooidea (Superfamily)
> Rissoinidae (Family)
> Rissoina (Genus)
> zonata (Species)
Images: Rissoina zonata Suter, 1909
In a low tidal rock pool, Doubtless Bay, Northland, NZ. 11mm
Taxonomy
Family:
RISSOINIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Rissooidea (Superfamily)
> Rissoinidae (Family)
> Rissoina (Genus)
> zonata (Species)
Details: Rissoina zonata Suter, 1909
Size/Grows to:
Height 11.5mm, Width 4.5mm
Distribution:
Northland to Cape Runaway
Geographical Range:
AE.
Notes:
Marine, Endemic, Usually white, but occasionally with a broad basal brown zone
Distribution Map
 
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)

Key to Geographical Ranges
NZ Map showing 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 approximation 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
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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