WHATSTHATFISH
Bony fish

Humpnose Unicornfish

Naso tonganus

Also known as: Bulbnose Unicornfish, Doctorfish, Humphead Unicornfish, Hump-headed Unicornfish, Humpnose Unicorn, Hump-nosed Unicornfish, Lancetfish, Thorntail, Thorntail Fish

LCLeast ConcernIUCN Red List, 2012
Juvenile
@perigor2000 · Bali, Indonesia · March 20111 / 1

Showing details for the juvenile stage. Switch stages to see how it differs.

01

Overview

Juveniles are densely covered in small dark spots and have a rounded profile, without the bony hump of the adult. The tail fin is slightly notched at this stage and becomes square-cut in adults.

02

How to identify

Fins & Tail
white tail ring

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03

Habitat & where to find it

Where the juvenile stage lives, and where its photos were taken.

  • Range · Western Indian Ocean
  • Country only · 1
04

Juvenile photos 1

05

Discussion

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    ALL STAGES
    FOR THE MARINE-BIOLOGY CURIOUS

    Deep dive

    Taxonomy

    1. kingdomAnimalia
    2. phylumChordata
    3. classTeleostei
    4. orderAcanthuriformes
    5. familyAcanthuridae
    6. genusNaso
    7. speciesNaso tonganus (Valenciennes, 1835)

    SourcesWoRMSFishBase

    06

    More in the family

    Surgeonfishes-Tangs-Unicornfishes (Acanthuridae)