Description
Also known as Doctorfish, Humpback Unicorn, Lancetfish, Ring-tailed Unicornfish, Thorntail, Thorntail Fish.
Found singly, or in small to large schools, over rocky shores and reef slopes, of deep seaward reefs.
They feed on benthic algae.
Length - 90cm
Depth - 8-30m
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/6020
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