See text Ctenochaetus, or bristletooth tangs, is a genus of marine ray-finned fish belonging to the family Acanthuridae, which includes the surgeonfishes, unicornfishes and tangs.

Ctenochaetus was first proposed as a genus in 1884 by the American biologist Theodore Gill with Acanthurus strigosus as its type species.

[1] A. strigosus had originally been described in 1828 by Edward Turner Bennett from the Sandwich Islands.

They have a different jaw structure from the Acanthurus surgeonfishes having numerous brush or bristle like flexible teeth.

They are found from the eastern coast of Africa, including the Red Sea eastwards through the tropical Indian Ocean into the Pacific Ocean as far east as Hawaii.