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The beardfishes consist of a single extant genus (''Polymixia'') in a small family (Polymixiidae) of deep-sea marine ray-finned fish named for their pair of long hyoid barbels. At present they are classified in their own order Polymixiiformes, but as Nelson says, "few groups have been shifted back and forth as frequently as this one". For instance, they have previously been classified as belonging to the Beryciformes. They are of little economic importance. They are found in tropical and subtropical waters of the Atlantic, Indian and western Pacific Ocean. They are bottom-dwelling fish, found down to about depth. Most are relatively small fish, although one species is over in length.〔 ==Classification== There are currently 10 recognized species in this genus: * ''Polymixia berndti'' C. H. Gilbert, 1905 (Pacific beardfish) * ''Polymixia busakhini'' Kotlyar, 1993 (Busakhin's beardfish) * ''Polymixia fusca'' Kotthaus, 1970 * ''Polymixia japonica'' Günther, 1877 (Silver eye) * ''Polymixia longispina'' S. M. Deng, G. Q. Xiong & H. X. Zhan, 1983 * ''Polymixia lowei'' Günther, 1859 (Beardfish) * ''Polymixia nobilis'' R. T. Lowe, 1838 (Stout beardfish) * ''Polymixia salagomeziensis'' Kotlyar, 1991 * ''Polymixia sazonovi'' Kotlyar, 1992 * ''Polymixia yuri'' Kotlyar, 1982 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Beardfish」の詳細全文を読む スポンサード リンク
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