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Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Maoricrypta (Genus)
> costata (Species)
Genus Synonyms:
=Maoricrypta (Zeacrypta) Finlay, 1926
=Zeacrypta Finlay, 1926
Synonymised Names:
=Crepidula costata G. B. Sowerby I, 1824
=Crepidula costata Deshayes, 1830
=Crepidula lineolata Deshayes, 1830
Images: Maoricrypta costata (G.B. Sowerby I, 1824)
Found intertidally under rocks, Leigh, Northland, NZ. 42mm
Under rocks at low tide, Leigh, Northland, NZ. 45mm
Found intertidally under rocks, Auckland, NZ. 20-25mm
Living on the back of a Buccinulum in a rock pool, Henderson Bay, Far North, NZ. 10-15mm
Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Maoricrypta (Genus)
> costata (Species)
Genus Synonyms:
=Maoricrypta (Zeacrypta) Finlay, 1926
=Zeacrypta Finlay, 1926
Synonymised Names:
=Crepidula costata G. B. Sowerby I, 1824
=Crepidula costata Deshayes, 1830
=Crepidula lineolata Deshayes, 1830
Details: Maoricrypta costata (G.B. Sowerby I, 1824)
Size/Grows to:
Length 60mm, Width 40mm
Distribution:
Northland to Mahia, living intertidally to 47 metres, attached to undersides of rocks and on living Perna canaliculus
Notes:
Ribbed Slipper Shell, Marine, Native - 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.118)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.149)

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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