Orangespine Unicornfish (Naso lituratus)

Also known as Barcheek Unicornfish, Blonde Naso Tang, Clown Tang, Doctorfish, Lancetfish, Lipstick Tang, Lipstick Unicornfish, Masked Unicornfish, Naso Surgeonfish, Naso Tang, Orange Unicorn Tang, Orangespine Surgeonfish, Orange-spined Unicornfish, Pacific Orangespine Unicorn, Pacific Orangespine Unicornfish, Poll Unicornfish, Poll-headed Unicornfish, Redlip Surgeonfish, Smoothhead Unicornfish, Smooth-headed Unicornfish, Striped Unicornfish, Striped-face Unicornfish, Stripeface Unicornfish, Thorntail, Thorn Fish, True Blonde Naso

Description

Also called Barcheek Unicornfish, Blonde Naso Tang, Clown Tang, Doctorfish, Lancetfish, Lipstick Tang, Lipstick Unicornfish, Masked Unicornfish, Naso Surgeonfish, Naso Tang, Orange Unicorn Tang, Orangespine Surgeonfish, Orange-spined Unicornfish, Pacific Orangespine Unicorn, Pacific Orangespine Unicornfish, Poll Unicornfish, Poll-headed Unicornfish, Redlip Surgeonfish, Smoothhead Unicornfish, Smooth-headed Unicornfish, Striped Unicornfish, Striped-face Unicornfish, Stripeface Unicornfish, Thorntail, Thorn Fish, True Blonde Naso.

Found in pairs or small schools over coral, rock and rubble areas of of lagoons and seaward reefs.
They feed mainly on leafy brown algae.
Juveniles found singly or in small schools mixed with other fish over shallow rocky reefs.
Identified by the bright orange razor-sharp spines on each side of the tail.
Length - 45cm
Depth - 0-90m
Widespread 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. Ref: https://www.fishbase.se/summary/1264

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