Species Images
Off Northland. 145mm
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Key to 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 approxomation 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

Tonna tetracotula Hedley, 1919

Classification:Gastropoda - Caenogastropoda - Hypsogastropoda
Family:TONNIDAE
Size/Grows to:Height 200mm, Width 150mm
Distribution:Outer Hauraki Gulf to Bay of Plenty. Also Australia, Queensland to Victoria
Geographical Range:A
References and Publications:
  • Vos, C. 2007: A Conchological Iconography 13, The family Tonnidae, ConchBooks, Hackenheim, Germany (p.56)
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.162)
  • Powell, A.W.B. 1927: On a large Tonna and two other Gastropods of Australian origins, Transactions and Proceedings of the Royal Society of New Zealand, 57 (p.559)

Note: Localities are approximate, and represent only some of the known localities for the species.