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Taxonomy
Family:
COLLONIIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Colloniidae (Family)
> Argalista (Genus)
> umbilicata (Species)
Genus Synonyms:
=Homalopoma Carpenter, 1864
=Homalopoma (Argalista) Iredale, 1915
Images: Argalista umbilicata Powell, 1926
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Taxonomy
Family:
COLLONIIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Colloniidae (Family)
> Argalista (Genus)
> umbilicata (Species)
Genus Synonyms:
=Homalopoma Carpenter, 1864
=Homalopoma (Argalista) Iredale, 1915
Details: Argalista umbilicata Powell, 1926
Size/Grows to:
Width 2.75mm, Height 1.9mm
Distribution:
Off South Island and southern islands
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.68)
  • Powell, A.W.B. 1926 Mollusca from 100 fathoms off Lyttelton, with descriptions of four new species, and also a new Pliocene fossil. Scientific Results of the New Zealand Government Trawling Expedition, 1907, Records of the Canterbury Museum, 3 (p.46) Original Description

*98 © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)

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