Harlequin sweetlips
Plectorhinchus chaetodonoides, the harlequin sweetlips, is a species of grunt native to the Indian Ocean and the western Pacific Ocean. It is a denizen of coral reefs found at depths of from. It can reach in TL. The heaviest known individual weighed. This species is of minor importance to local commercial fisheries and can be found in the aquarium trade.
Juveniles are brown with large white blotches and mimic the movement of a poisonous flatworm for defence against predators. They gain more spots and the spots reverse from white to black as they age.