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Taxonomy
Family: Subfamily:
LITTORINIDAE: LACUNINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Littorinoidea (Superfamily)
> Littorinidae (Family)
> Lacuninae (Subfamily)
> Risellopsis (Genus)
> varia (Species)
Synonymised Names:
=Adeorbis varius Hutton, 1873
=Risellopsis varia var. carinata Kesteven, 1902
Images: Risellopsis varia (Hutton, 1873)
Found in beach drift, Far North, NZ. 4.5mm. © rights reserved
Found in beach drift, Far North, NZ. 4.5mm. © rights reserved
Found in beach drift, Far North, NZ. 4.5mm. © rights reserved
Taxonomy
Family: Subfamily:
LITTORINIDAE: LACUNINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Littorinoidea (Superfamily)
> Littorinidae (Family)
> Lacuninae (Subfamily)
> Risellopsis (Genus)
> varia (Species)
Synonymised Names:
=Adeorbis varius Hutton, 1873
=Risellopsis varia var. carinata Kesteven, 1902
Details: Risellopsis varia (Hutton, 1873)
Size/Grows to:
Width 8mm, Height 6mm
Distribution:
North, South, Stewart and Chatham Islands, from 0m
Type Data:
  • Stewart Island, NZ, (lectotype)
Notes:
Marine, Native - Endemic, Very common on upper tidal rocks
Distribution Map
 
References and Publications
  • Reid, D.G. 1989 The comparative morphology, phylogeny and evolution of the gastropod family Littorinidae, Philosophical Transactions of the Royal Society, 324 (p.91)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.88)
  • Hutton, F.W. 1873 Catalogue of the Marine Mollusca of New Zealand, with diagnoses of the species, Dominion Museum (NZ) Original Description

NZ Geographical Regions
Key to symbols used in Checklist.
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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