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Polymixia nobilis.jpg
Stout Beardfish, (P. nobilis)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Polymixiiformes
D. E. Rosen & Patterson, 1969
Family: Polymixiidae
T. N. Gill, 1862
Genus: Polymixia
R. T. Lowe, 1838

Polymixia is the only extant genus of the order Polymixiiformes and the only genus in Polymixiidae. It contains 10 species, all of which live in deepwater marine environments.[1] They are found in tropical and subtropical waters of the Atlantic, Indian and western Pacific Oceans. They are bottom-dwelling fish, found down to about 800 m (2,600 ft). Most are relatively small fish, although one species is over 40 cm (16 in) in length.[2]


There are currently 10 recognized species in this genus:[1]


  1. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2017). Species of Polymixia in FishBase. February 2017 version.
  2. ^ Paxton, John R. (1998). Paxton, J.R.; Eschmeyer, W.N., eds. Encyclopedia of Fishes. San Diego: Academic Press. p. 161. ISBN 0-12-547665-5.