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Taxonomy
Family:
COLLONIIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Colloniidae (Family)
> Argalista (Genus)
> crassicostata (Species)
Genus Synonyms:
=Homalopoma Carpenter, 1864
=Homalopoma (Argalista) Iredale, 1915
Synonymised Names:
=Leptothyra crassicostata R. Murdoch, 1905
Images: Argalista crassicostata (R. Murdoch, 1905)
Lectotype of Leptothyra crassicostata, collected 'Whangaroa' = Foveaux Strait or Stewart Island, NZ (M.001804). 3mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family:
COLLONIIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Colloniidae (Family)
> Argalista (Genus)
> crassicostata (Species)
Genus Synonyms:
=Homalopoma Carpenter, 1864
=Homalopoma (Argalista) Iredale, 1915
Synonymised Names:
=Leptothyra crassicostata R. Murdoch, 1905
Details: Argalista crassicostata (R. Murdoch, 1905)
Size/Grows to:
Width 3.2mm, Height 2.5mm
Distribution:
South Island. Foveaux Strait and Stewart Island, Snares 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.67)
  • Murdoch, R. 1905 Additions to the marine Mollusca of New Zealand., Transactions and Proceedings of the New Zealand Institute, 37 (p.223) 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