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Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Sigapatella (Genus)
> novaezelandiae (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:
=Calyptraea (Sigapatella) novaezelandiae Lesson, 1831
=Calyptraea inflata Hutton, 1893
=Calyptraea novaezelandiae Lesson, 1831
=Crepidula maculata Quoy & Gaimard, 1832
=Sigapatella (Sigapatella) novaezelandiae (Lesson, 1831) accepted, alternate representation
Images: Sigapatella novaezelandiae (Lesson, 1831)
In beach drift, Bream Bay, Northland, NZ. 31mm
In beach drift, Bream Bay, Northland, NZ. 31mm
In beach drift, Bream Bay, Northland, NZ. 31mm
Under rocks at low tide, north Auckland, NZ
Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Sigapatella (Genus)
> novaezelandiae (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:
=Calyptraea (Sigapatella) novaezelandiae Lesson, 1831
=Calyptraea inflata Hutton, 1893
=Calyptraea novaezelandiae Lesson, 1831
=Crepidula maculata Quoy & Gaimard, 1832
=Sigapatella (Sigapatella) novaezelandiae (Lesson, 1831) accepted, alternate representation
Details: Sigapatella novaezelandiae (Lesson, 1831)
Size/Grows to:
Length 42mm, Height 25mm
Distribution:
North, South, Stewart, Chatham, Auckland, Snares and Campbell Islands. Living intertidally to 200 metres, attached to hard substrate
Geographical Range:
ACFMAnE.
Notes:
Circular Slipper Shell, Marine, Endemic
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.130)
  • 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.148)
  • Wood Oct/1974 Notes of Interest: Sigapatella novaezelandiae, Poirieria, 7(5)

Key to Geographical Ranges
NZ Map showing Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species. They have been adopted to give an approximation of the range of each species within New Zealand.
K=
Kermadec Islands
A=
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
C=
Cookian - Lower North Island and the northern part of the South Island
F=
Forsterian - Otago, Fiordland and Stewart Island
M=
Moriorian - Chatham Islands, Pitt Island
An=
Antipodean - Subantarctic Islands of New Zealand
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
E =
Endemic
I =
Introduced
R =
Recent
Sf =
Subfossil
Fo =
Fossil