It is one of the common names of a very showy and blue seafish with some black pints occasionally. It is also called blue surgeon, blue barber, blue navajon or blue bleeder. Its scientific name is Acanthurus coeruleus and belongs to the family Acanthuridae.
blue surgeon-refers to the expression : actinoperigio marine fish, small mouth but with many teeth, large snout, intense blue color, with habitat near the reefs-