WHATSTHATFISH
Bony fish

Chinese Trumpetfish

Aulostomus chinensis

Also known as: Flutemouth, Pacific Trumpetfish, Painted Flutemouth, Spinyback Trumpetfish, Stickfish, Tahiti Cornet Fish, Trumpet, Tubo Tubo

LCLeast ConcernIUCN Red List, 2025
Adult
@fishx6 · Mirihi Island Resort, Maldives · May 20071 / 60
01

Overview

Found singly, shadowing other fish, and using camouflage to sneak up on their prey! Over shallow, clear water, coral and rocky areas, of protected lagoons and seaward reefs. Varies in colour to match surroundings or fish they are stalking!

The Trumpetfish can be recognised by its long body, tubular snout with minute teeth, its chin barbel and the series of short dorsal spines.Their bodies are inflexible, supported by interwoven struts of bone. The colouration of this species is variable. It is often brown or green with pale stripes and bars, and white spots posteriorly. A yellow colour variety is common in some areas. Individual fish have the ability to change their colours very quickly. Trumpetfish have the capability to rapidly expand their jaws into a circular gaping hole almost the diameter of their body when feeding. They are carnivores, hovering almost motionless just a few inches above the substrate, slowly inching their way towards unsuspecting prey. When they get close enough, they rapidly dart in, expanding their jaws. The rapid opening of their tube-like mouths creates a strong sucking force, drawing their prey straight into their oral cavities.

Although Trumpetfish can be found in various colours, because of their ability to change colour at will, there is in fact only one genus with two species, one Pacific and one Atlantic.

02

How to identify

Pattern
stripes
Fins & Tail
flag tail

Tap any trait to see other fish that share it.

03

Habitat & where to find it

  • Range · Indo-Pacific, Eastern Central Pacific
  • Exact location · 3
  • Dive site · 1
  • Country only · 56
LIVES IN

Found singly, shadowing other fish, and using camouflage to sneak up on their prey!

04

Adult photos 60

05

Discussion

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    ALL STAGES
    FOR THE MARINE-BIOLOGY CURIOUS

    Deep dive

    Taxonomy

    1. kingdomAnimalia
    2. phylumChordata
    3. classTeleostei
    4. orderSyngnathiformes
    5. familyAulostomidae
    6. genusAulostomus
    7. speciesAulostomus chinensis (Linnaeus, 1766)

    SourcesWoRMSFishBase

    06

    More in the family

    Syngnathiformes