Blackstreak surgeonfish
Blackstreak surgeonfish, Acanthurus nigricauda, or epaulette surgeonfish, eye-line surgeonfish, shoulderbar surgeonfish, white-tail surgeonfish, is a tropical fish in the family Acanthuridae. It is native to the Indo-Pacific region. It occurs over sandy and rocky bottoms, in bays, lagoons and on reef slopes, at depths down to about 30 m.
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