Orangeband Surgeonfish
Scientific Name: Acanthurus olivaceus
Species: Surgeonfishes (Acanthuridae)
Other names: Doctorfishes, Lancetfishes, Orangeband Tang, Orangespot Surgeonfish, Orangespot Tang, Orange Shoulder Surgeonfish, Orange Shoulder Tang, Orange-shouldered Surgeonfish, Orange-shouldered Tang, Orangebar Surgeonfish, Orangebar Tang, Orange-blotch Surgeonfish, Orange-blotch Tang, Orange-epaulette Surgeonfish, Orange-epaulette Tang.
Some Images
Description
Also known as Doctorfishes, Lancetfishes, Orangeband Tang, Orangespot Surgeonfish, Orangespot Tang, Orange Shoulder Surgeonfish, Orange Shoulder Tang, Orange-shouldered Surgeonfish, Orange-shouldered Tang, Orangebar Surgeonfish, Orangebar Tang, Orange-blotch Surgeonfish, Orange-blotch Tang, Orange-epaulette Surgeonfish and Orange-epaulette Tang.
Found singly or in small groups over sand bottoms close to reefs.
Juveniles all yellow.
They feed on plankton and algae.
Length - 35cm
Depth - 3-45m
Widespread East Indo-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. (edit)
Spotted
The Orangeband Surgeonfish is found in or near the East Indo-Pacfic region(s) and has been photographed 3 times by user @fishx6

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