Description

Also known as Bristletooth, Bristletooth Surgeonfish, Bristle-toothed Surgeonfish, Combtooth Tang, Doctorfish, Goldeye Tang, Goldring Bristletooth, Goldring Surgeonfish, Kole Tang, Kole Yellow-eye Tang, Lancetfish, Slender-toothed Surgeonfish, Spotted Bristletooth, Spotted Bristletooth Surgeonfish, Straited Surgeonfish, Striped Bristletooth, Striped Surgeonfish, Thorntail, Thorntail Fish, Yelloweye Kole Tang, Yelloweye Surgeonfish, Yelloweye Tang, Yellow-eyed Surgeonfish, Yellow-eyed Tang.

Found singly, over coral, rock, and rubble areas, of coral and rocky reefs.
They feed on detritus.
Length - 15cm
Depth - 1-110m
Widespread Eastern Central Pacific

Surgeonfish have a blade like spine in the tail that points outwards when bent, unicorns have two hook-like plates along the tail, these are used for defence and are as sharp as a surgeons scalpel, hence the name "Surgeonfish".
Some species are venomous. Ref: https://www.fishbase.se/summary/Ctenochaetus-strigosus.html