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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
E =
Endemic
I =
Introduced
Gastropoda - Caenogastropoda - Hypsogastropoda - Family: Tonnidae

Tonnidae

 

Genus: Eudolium

 
Eudolium bairdii (Verrill & Smith, 1881)
Height 50mm, Width 25mm
Atlantic, Mediterranean and Indo-West Pacific, 17-823 metres (deepest alive 560 metres). Bay of Plenty, 380-420 metres [A]
Eudolium crosseanum (Monerosato, 1869) (=pyriforme G.B.Sowerby III)
Length 60mm, Width 45mm
Indo-West Pacific, from South Africa to Japan, Hawaii and northern New Zealand. Off Northland, Bay of Plenty, 137-580m (deepest alive 390m) [A]

Genus: Malea

 
Malea pomum (Linnaeus, 1758)
Height 70mm
Kermadec Islands, and occasionally washed up in the Far North [K.A]

Genus: Tonna

 
Tonna cumingii (Reeve, 1849)
Height 90mm, Width 65mm
East Coast Northland [A]
Tonna dolium (Lamarck, 1822) (=maculata Powell not Lamarck)
Height 110mm, Width 95mm
Indo-Pacific, Indian Ocean, Indonesia, Japa, Philippines, Fiji and northern part of North Island [A]
Tonna lischkeana (Küster, 1857)
Height 215mm
E Africa to Hawaii. Northern New Zealand [A]
 
Tonna luteostoma (Küster, 1857)
Height 100mm, Width 85mm
N.Z. Far North. Common in Japan [A]
Tonna melanostoma (Jay, 1839)
Height 180mm, Width 145mm, Distinguished by dark-brown spreading parietal callus
Hawaiian Islands to Tonga, Society Islands, Melanesia and Northland east coast [K.A]
 
Tonna perdix (Linnaeus, 1758)
Length 225mm
Indo-Western Pacific, Kermadec Islands and Northland [K.A]
Tonna tankervillii (Hanley, 1860) (=cerevisina Hedley)
Height 250mm, Width 210mm, Common Cask or Tun Shell. Characterised by a deep canaliculate suture
Northland to Hawkes Bay and Mahia Peninsula. Washups on sandy beaches and alive below low tide [AC]
Tonna tetracotula Hedley, 1919
Height 200mm, Width 150mm
Outer Hauraki Gulf to Bay of Plenty. Also Australia, Queensland to Victoria [A]
Tonna zonata (Green, 1830) (=olearium Powell)
Height 200mm, Width 155mm
Nortern part of North Island, to western Bay of Plenty. Also Indian Ocean, Japan [A]