Threetooth puffer

From Wikipedia, the free encyclopedia
  (Redirected from Triodontidae)
Jump to: navigation, search
Threetooth puffer
Triodon macropterus JNC2989.JPG
Threetooth puffer, Triodon macropterus, with extended belly flap
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Tetraodontiformes
Family: Triodontidae
Bleeker, 1865-69
Genus: Triodon
G. Cuvier, 1829
Species: T. macropterus
Binomial name
Triodon macropterus
Lesson, 1831

The threetooth puffer, Triodon macropterus, is a tetraodontiform fish, the only living species in the genus Triodon and family Triodontidae. Other members of the family are known from fossils stretching back to the Eocene.[1]

It is native to the Indo-Pacific, where found at depths to 300 m (980 ft).[2] Its name comes from the Greek tria meaning "three" and odous meaning "tooth", and refers to the three fused teeth making up a beak-like structure.

The threetooth puffer reaches a maximum length of 54 cm (21 in).[2] It has a distinctive shape, with a huge belly flap as large as or larger than its body; it inflates this with seawater when threatened. The flap bears an eye-spot, and is inflated by rotating the shaft-like pelvis downwards. This makes the animal appear much larger to predators, and less likely to be eaten.[1]

The threetooth puffer is also known as the Black-spot Keeled Pufferfish, and was first scientifically described by Lesson in 1831. [3]


  1. ^ a b Keiichi, Matsura & Tyler, James C. (1998). Paxton, J.R. & Eschmeyer, W.N., ed. Encyclopedia of Fishes. San Diego: Academic Press. p. 230. ISBN 0-12-547665-5. 
  2. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2011). "Triodon macropterus" in FishBase. August 2011 version.
  3. ^ Martin F. Gomon & Dianne J. Bray (2011) Threetooth Puffer, Triodon macropterus, Fishes of Australia. Retrieved 29 Sep 2014.