Blunthead puffer
The blunthead puffer, Sphoeroides pachygaster, is a pufferfish of the family Tetraodontidae, found circumglobally in tropical and temperate seas, at depths between 50 and 500 m. Its length is up to 40 cm.
References
Froese, Rainer and Pauly, Daniel, eds. (2012). "Sphoeroides pachygaster" in FishBase. April 2012 version.
Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8