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Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Maoricrypta (Genus)
> youngi (Species)
Genus Synonyms:
=Maoricrypta (Zeacrypta) Finlay, 1926
=Zeacrypta Finlay, 1926
Synonymised Names:
=Crepidula youngi (Powell, 1940)
=profunda Beu & Maxwell not Hutton
Images: Maoricrypta youngi Powell, 1940
In beach drift, Cape Maria van Diemen, Far North, NZ. 16mm
Holotype, from Cape Maria van Diemen, Far North, NZ (MA70437). © Auckland Museum (CC-BY)
Holotype, from Cape Maria van Diemen, Far North, NZ (MA70437). © Auckland Museum (CC-BY)
Taxonomy
Family:
CALYPTRAEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Calyptraeoidea (Superfamily)
> Calyptraeidae (Family)
> Maoricrypta (Genus)
> youngi (Species)
Genus Synonyms:
=Maoricrypta (Zeacrypta) Finlay, 1926
=Zeacrypta Finlay, 1926
Synonymised Names:
=Crepidula youngi (Powell, 1940)
=profunda Beu & Maxwell not Hutton
Details: Maoricrypta youngi Powell, 1940
Size/Grows to:
Length 29mm, Width 22mm, Height 8mm
Distribution:
North Cape to Cook Strait, living on Gastropods, at low tide to 88 metres
Geographical Range:
ACE.
Notes:
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.121)
  • Beu, A.G., Maxwell, P.A. 1990 Cenozoic Mollusca of New Zealand, New Zealand Geological Survey, 58 (p.259)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.149)
  • Gardner, N.W. Jul/1978 Maoricrypta youngi Powell, a Northern Species, Poirieria, 9(5)
  • Powell, A.W.B. 1940 The Marine Mollusca of the Aupourian Province, New Zealand, Transactions and Proceedings of the Royal Society of New Zealand, 70 (p.232) Original Description

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

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
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