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Taxonomy
Family:
PERIPLOMATIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Anomalodesmata (Superorder)
> Thracioidea (Superfamily)
> Periplomatidae (Family)
> Offadesma (Genus)
> angasi (Species)
Synonymised Names:
=Periploma angasi Crosse & P. Fischer, 1864
Images: Offadesma angasi Crosse & Fischer, 1864
Mount Maunganui, Bay of Plenty, NZ. 69mm
Mount Maunganui, Bay of Plenty, NZ. 69mm
Taxonomy
Family:
PERIPLOMATIDAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Anomalodesmata (Superorder)
> Thracioidea (Superfamily)
> Periplomatidae (Family)
> Offadesma (Genus)
> angasi (Species)
Synonymised Names:
=Periploma angasi Crosse & P. Fischer, 1864
Details: Offadesma angasi Crosse & Fischer, 1864
Size/Grows to:
Width 104mm, Height 70mm
Distribution:
North, South, Stewart and Chatham Islands. Below low tide in soft or sandy mud. Also South Australia, New South Wales and Tasmania
Geographical Range:
ACFM
Notes:
Lantern Shell, Marine, Right valve inflated, left valve almost flat
Distribution Map
 
References and Publications
  • Coles, J. Aug/1985 Offadesma angasi (Crosse and Fischer, 1864), Poirieria, 14(2) (p.14)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.433)

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
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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