Yellowfin Surgeonfish (Juvenile) (Acanthurus xanthopterus)

Also known as Curvier's Surgeonfish, Doctorfish, Lancetfish, Purple Surgeonfish, Ringtail Surgeonfish, Ring-tailed Surgeonfish, Thorntail, Thorntail Fish, Yellowfin Surgeon, Yellowmask Surgeonfish

Description

Also known as Curvier's Surgeonfish, Doctorfish, Lancetfish, Purple Surgeonfish, Ringtail Surgeonfish, Ring-tailed Surgeonfish, Thorntail, Thorntail Fish, Yellowfin Surgeon, Yellowmask Surgeonfish.

Found in schools over sand slopes of deep protected bays, lagoons and outer reefs.
They feed on filamentous algae, detritus, pieces of fish and hydroids.
Juveniles found over surge zones of protected inshore waters.
Often curious towards boats and divers.
Length - 56cm
Depth - 1-100m
Widespread Eastern Pacific, 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/1261

Related creatures

Heads up! Many creatures change during their life. Juvenile fish become adults and some change shape or their colour. Some species change sex and others just get older. The following creature(s) are known relatives of the Yellowfin Surgeonfish (Juvenile). Click the image(s) to explore further or hover over to get a better view!

Yellowfin Surgeonfish

Yellowfin Surgeonfish

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