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Taxonomy
Family: Subfamily:
MURICIDAE: RAPANINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Neogastropoda (Order)
> Muricoidea (Superfamily)
> Muricidae (Family)
> Rapaninae (Subfamily)
> Agnewia (Genus)
> tritoniformis (Species)
Synonymised Names:
=Adamsia typica Dunker, 1857
=Agnewia nautica Thornley, 1952
=Purpura tritoniformis Blainville, 1832
=Purpura tritoniformis var. levidensis Kesteven, 1902
Images: Agnewia tritoniformis (Blainville, 1832)
From Spirits Bay, Far North. 27mm
From shallow water, Northland, NZ. 22mm
From shallow water, Northland, NZ. 22mm
From shallow water, Northland, NZ. 22mm
Taxonomy
Family: Subfamily:
MURICIDAE: RAPANINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Neogastropoda (Order)
> Muricoidea (Superfamily)
> Muricidae (Family)
> Rapaninae (Subfamily)
> Agnewia (Genus)
> tritoniformis (Species)
Synonymised Names:
=Adamsia typica Dunker, 1857
=Agnewia nautica Thornley, 1952
=Purpura tritoniformis Blainville, 1832
=Purpura tritoniformis var. levidensis Kesteven, 1902
Details: Agnewia tritoniformis (Blainville, 1832)
Size/Grows to:
Height 29mm, Width 16mm
Distribution:
Northland to Bay of Plenty and Mahia. Also Australia, Queensland to SA and Tasmania
Geographical Range:
A
Notes:
Marine
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.181)
  • Richardson, E.S. 1953 Distribution in New Zealand of the Australian Gastropod Agnewia tritoniformis (Blainville), New Zealand Journal of Science and Technology, 35(1) (p.39)

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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