WHATSTHATFISH
Bony fish

Trumpetfish

Aulostomus maculatus

Also known as: Atlantic Trumpetfish, Caribbean Trumpetfish, Painted Flutemouth, Trumpet, Trumpeter

NTNear ThreatenedIUCN Red List, 2026
Adult
@fishx6 · Bonaire - Captain Don's Beach, Caribbean Netherlands · November 20101 / 22

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

01

Overview

Found singly, either snout down, mimicking whip corals, or swimming alongside herbivore fish, changing colour, to match the fish and their surroundings, ready to pounce on any other unsuspecting crustacean or fish. Varies in colour to match surroundings or fish they are stalking!
They feed by opening their mouths to the size of their bodies, and sucking in their prey of crustaceans and small schooling reef fishes.

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
dart tail

Tap any trait to see other fish that share it.

03

Habitat & where to find it

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

  • Range · Western Atlantic, Caribbean
  • Country only · 22
LIVES IN

Found singly, either snout down, mimicking whip corals, or swimming alongside herbivore fish, changing colour, to match the fish and their surroundings, ready to pounce on any other unsuspecting crustacean or fish.

04

Adult photos 22

05

Discussion 3

Comments are checked by a moderator before they appear.

3 comments

  • allison· 2 Jun 2017

    Ha! Great information! We are snorkeling in West Maui and fascinated by these flute-like or clarinet-like fish. Not getting the trumpet, but what do I know? I was so curious why some are deep ochre or bright yellow, others nearly transparent beige/sand color, and others olive with white stripes and dots. I can't wait to get back out there and watch them feed. I have not noticed them stalking, just swimming aimlessly about.

  • Bill Beck· 3 Nov 2016

    I recently went on a trip Yellow Submarine off Tenerife. I video da&page fish which I think was a trumpet fish. Could this be possible as Far East of Carribean

  • fishx6Top Contributor· 24 Nov 2016

    Not according to Fish Base, but if you would like to upload the picture we can have a look!

    Helpful
ALL STAGES
FOR THE MARINE-BIOLOGY CURIOUS

Deep dive

Taxonomy

  1. kingdomAnimalia
  2. phylumChordata
  3. classTeleostei
  4. orderSyngnathiformes
  5. familyAulostomidae
  6. genusAulostomus
  7. speciesAulostomus maculatus Valenciennes, 1841

SourcesWoRMSFishBase

06

More in the family

Syngnathiformes