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Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Sigapatella (Genus)
> tenuis (Species)
Genus Synonyms:
=Calyptraea (Sigapatella) Lesson, 1831
=Clypeola Gray, 1868
=Sigapatella (Sigapatella) Lesson, 1831
=Sigapatella (Spirogalerus) Finlay & Marwick, 1937
=Spirogalerus Finlay & Marwick, 1937
=Zegalerus Finlay, 1926
Synonymised Names:
=Clypeola tenuis Gray, 1867
=Sigapatella (Sigapatella) tenuis (Gray, 1867) accepted, alternate representation
=Trochita tenuis (Gray, 1867)
=Zegalerus tenuis (Gray, 1867)
Images: Sigapatella tenuis (Gray, 1867)
In beach drift, Ngunguru, Northland, NZ. 15mm. © rights reserved
Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Sigapatella (Genus)
> tenuis (Species)
Genus Synonyms:
=Calyptraea (Sigapatella) Lesson, 1831
=Clypeola Gray, 1868
=Sigapatella (Sigapatella) Lesson, 1831
=Sigapatella (Spirogalerus) Finlay & Marwick, 1937
=Spirogalerus Finlay & Marwick, 1937
=Zegalerus Finlay, 1926
Synonymised Names:
=Clypeola tenuis Gray, 1867
=Sigapatella (Sigapatella) tenuis (Gray, 1867) accepted, alternate representation
=Trochita tenuis (Gray, 1867)
=Zegalerus tenuis (Gray, 1867)
Details: Sigapatella tenuis (Gray, 1867)
Size/Grows to:
Length 23mm, Height 10mm
Distribution:
North, South, Stewart and Chatham Islands, and Mernoo Bank, from 0-604m
Notes:
Marine, Native - Endemic, Attached to hard substrate. Oblique spiral threads on the teleoconch, smooth periostracum when not worn off
Distribution Map
 
References and Publications
  • Marshall, B.A. 2003 A review of the Recent and late Cenozoic Calyptraeidae of New Zealand (Mollusca: Gastropoda), The Veliger, 46(2) (p.139)
  • Cumber, R.A. Aug/1981 An unusual form of Zegalerus sp. from Great Exhibition Bay, Poirieria, 11(1) (p.5)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.149)
  • Gray, J.E. 1868 Notes on the specimens of Calyptraeidae in Mr. Cuming's collection, Proceedings of the Zoological Society of London (p.735) 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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