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Taxonomy
Family:
SKENEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Skeneidae (Family)
> Cirsonella (Genus)
> laxa (Species)
Genus Synonyms:
=Porcupinia Cossmann, 1900
=Tharsiella Bush, 1897
=Tharsis Jeffreys, 1883
Images: Cirsonella laxa Powell, 1937
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Taxonomy
Family:
SKENEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Skeneidae (Family)
> Cirsonella (Genus)
> laxa (Species)
Genus Synonyms:
=Porcupinia Cossmann, 1900
=Tharsiella Bush, 1897
=Tharsis Jeffreys, 1883
Details: Cirsonella laxa Powell, 1937
Size/Grows to:
Width 1.3mm, Height 0.8mm
Distribution:
Middlesex and King Banks, Three Kings Islands, off Cape Reinga, and north-eastern North Island as far south as Bay of Islands, from 4-622m
Type Data:
  • 260 metres, off Three Kings Islands, NZ, (holotype)
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Morley, M.S., Hayward, B.W., Raven, J.L., Foreman, G.A., Grenfell, H.R. 2006 Intertidal and shallow subtidal biota of Mahia Peninsula, Hawkes Bay, Records of the Auckland Institute and Museum, 43 (p.32)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.70)
  • Powell, A.W.B. 1937 New Species of Marine Mollusca from New Zealand, Discovery Reports, 15 (p.184) 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