Polymixia is the only extant genus of the order Polymixiiformes and family Polymixiidae. It contains 12 species, all of which live in deepwater marine environments. 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 . Most are relatively small fish, although one species is over in length. They can be considered "living fossils" due to being the only surviving members of the once-diverse order Polymixiiformes.
GENUS
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Polymixia is the only extant genus of the order Polymixiiformes and family Polymixiidae. It contains 12 species, all of which live in deepwater marine environments. 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 . Most are relatively small fish, although one species is over in length. They can be considered "living fossils" due to being the only surviving members of the once-diverse order Polymixiiformes.
==Classification== There are currently 12 recognized species in this genus: Polymixia berndti C. H. Gilbert, 1905 (Pacific beardfish) Polymixia busakhini Kotlyar, 1993 (Busakhin's beardfish) Polymixia carmenae Caixeta, Oliveira & de Melo, 2024 (Brazilian beardfish) Polymixia fusca Kotthaus, 1970 Polymixia hollisterae Grande & Wilson, 2021 (Bermuda beardfish) Polymixia japonica Günther, 1877 (Silver eye) Polymixia longispina S. M. Deng, G. Q. Xiong & H. X. Zhan, 1983 Polymixia lowei Günther, 1859 (Beardfish) Polymixia melanostoma Fan, Su, Lin, Chang & Lin 2024 Polymixia nobilis R. T. Lowe, 1838 (Stout beardfish) Polymixia salagomeziensis Kotlyar, 1991 Polymixia sazonovi Kotlyar, 1992 Polymixia yuri Kotlyar, 1982
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