WHATSTHATFISH
Bony fish

Powderblue Surgeonfish

Acanthurus leucosternon

Also known as: Blue Surgeonfish, Doctorfish, Lancetfish, Powderblue Doctorfish, Powderblue Surgeon, Powderblue Tang, Thorntail, Thorntail Fish

LCLeast ConcernIUCN Red List, 2012
Adult
@fishx6 · Mirihi Island Resort, Maldives · June 20101 / 31
01

Overview

Found in small to large schools, over reef flats and upper seaward slopes, of clear coastal and island coral reefs.

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.

02

How to identify

Head & Mouth
black face
Behaviour
schooling

Tap any trait to see other fish that share it.

03

Habitat & where to find it

  • Range · Indian Ocean, Western Pacific
  • Exact location · 3
  • Country only · 28
LIVES IN

Found in small to large schools, over reef flats and upper seaward slopes, of clear coastal and island coral reefs.

04

Adult photos 31

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Discussion 2

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2 comments

  • sophia· 2 Jun 2014

    it is really cool. are these venomous?

  • fishx6Top Contributor· 5 Jun 2014

    Only form their blade like spine on the tail, but I have never heard of anyone being hurt, maybe fishermen when caught. As divers we get really close.

    Helpful
ALL STAGES
FOR THE MARINE-BIOLOGY CURIOUS

Deep dive

Taxonomy

  1. kingdomAnimalia
  2. phylumChordata
  3. classTeleostei
  4. orderAcanthuriformes
  5. familyAcanthuridae
  6. genusAcanthurus
  7. speciesAcanthurus leucosternon Bennett, 1833

SourcesWoRMSFishBase

06

More in the family

Surgeonfishes-Tangs-Unicornfishes (Acanthuridae)