‹ Fish Finder· #013

Twospot Surgeonfish

Ctenochaetus binotatus

Bislamastrongskin— names this kind of animal, not this species alone

Twospot Surgeonfish — photo 1 of 4
Photo 1 of 4 · Bernard Picton · CC BY 4.0 · via Wikimedia Commons
uncommonbluebrownlinedsmallreef
Habitat
Reef
Max size
22 cm
Depth
10-50 m
Family
Acanthuridae

Ctenochaetus binotatus, the twospot bristletooth or twospot surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes unicornfishes and tangs. This species has a wide Indo-Pacific distribution.

Adapted from Wikipedia, licensed under CC BY-SA 4.0.

Easily confused with

Side by side, with what tells them apart.

Twospot Surgeonfish
This oneTwospot Surgeonfish
Brown Surgeonfish
Look-alikeBrown Surgeonfish

Both are small brown surgeonfish with a black spot at the rear base of the dorsal and anal fins. Twospot Surgeonfish is orange-brown with a blue ring around the eye, pale spots on the head and chest and pale lines along the sides, and its young have a yellow tail. Brown Surgeonfish is brown to purplish, with small orange spots on the head and a black ring around the tail spine.

See the Brown Surgeonfish →

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