Eudolium bairdii (Verrill & Smith, 1881) Height 50mm, Width 25mm, Marine 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, Marine Indo-West Pacific, from South Africa to Japan, Hawaii and northern New Zealand. Off Northland, Bay of Plenty, 137-580m (deepest alive 390m) A
Tonna cumingii (Reeve, 1849) Height 90mm, Width 65mm, Marine. The species currently classified as Tonna cumingii in New Zealand could possibly be a new/different species or even more than one species. Until further research has been published, the current name of Tonna cumingii is used here East Coast Northland A
Tonna dolium (Lamarck, 1822) (=maculata Powell not Lamarck) Height 110mm, Width 95mm, Marine Indo-Pacific, Indian Ocean, Indonesia, Japa, Philippines, Fiji and northern part of North Island A
Tonna lischkeana (Küster, 1857) Height 215mm, Marine E Africa to Hawaii. Northern New Zealand A
Tonna luteostoma (Küster, 1857) Height 100mm, Width 85mm, Marine N.Z. Far North. Common in Japan A
Tonna melanostoma (Jay, 1839) Height 180mm, Width 145mm, Marine. Distinguished by dark-brown spreading parietal callus Hawaiian Islands to Tonga, Society Islands, Melanesia and Northland east coast KA
Tonna perdix (Linnaeus, 1758) Length 225mm, Marine Indo-Western Pacific, Kermadec Islands and Northland KA
Tonna tankervillii (Hanley, 1860) (=cerevisina Hedley) Height 250mm, Width 210mm, Common Cask or Tun Shell. Marine. 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, Marine Outer Hauraki Gulf to Bay of Plenty. Also Australia, Queensland to Victoria A
Tonna zonata (Green, 1830) (=olearium Powell) Height 200mm, Width 155mm, Marine Nortern part of North Island, to western Bay of Plenty. Also Indian Ocean, Japan A
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.
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island