Species Images
Bream Bay, Whangarei. 126mm
Washed up on Bream Bay, south of Whangarei. 160mm
. 160mm
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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.
Kermadec Islands
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
Forsterian - Otago, Fiordland and Stewart Island
Moriorian - Chatham Islands, Pitt Island
Antipodean - Subantarctic Islands of New Zealand
FW =
L =
E =
I =

Tonna tankervillii (Hanley, 1860)

Classification:Mollusca (Phylum) > Gastropoda (Class) > Caenogastropoda (Subclass) > Littorinimorpha (Order) > Tonnoidea (Superfamily) > Tonnidae (Family) > Tonna (Genus)
Size/Grows to:Height 250mm, Width 210mm
Synonyms:(=cerevisina Hedley)
Distribution:Northland to Hawkes Bay and Mahia Peninsula. Washups on sandy beaches and alive below low tide
Geographical Range:[AC]
Common Cask or Tun Shell. Characterised by a deep canaliculate suture
References and Publications:
  • Vos, C. 2007: A Conchological Iconography 13, The family Tonnidae, ConchBooks, Hackenheim, Germany (p.102)
  • Morley, M.S., Hayward, B.W., Raven, J.L., Foreman, G.A., Grenfell, H.R. 2006: Intertidal and shallow subtidal biota of Mahia Peninsula, Hawkes Bay, Records of the Auckland Institute and Museum, 43 (p.35)
  • Morley, M.S. Jul/2005: Presumes Tonna cerevisina spawn, Poirieria, 31 (p.26)
  • Paul, W.J. Mar/1979: New Zealand Tonnidae, Cookia, 3(1) (p.18)
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.161)
  • Grange, K.R. Mar/1974: The feeding of Tonna cerevisina, Poirieria, 7(3) (p.57)

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

*2 © Museum of New Zealand Te Papa Tongarewa CC BY-NC-ND