schéma
all 3 tropical oceans inféodés aux milieux tropicaux (qq cas de migration lessepsienne) highly compressed, rounded body, looking like smaller versions of angelfish (Pomacanthidae), but unlike these, lack preopercle spines at the gill covers corps ovale et très comprimé latéralement front dessine une courbure concave jusqu'à la bouche mouth small with elongate snout, terminal and protrusible with a band or rows of small brushlike teeth dorsal fin continuous swim bladder bright conspicuous coloration most with a dark band across the eye and an 'eyespot' dorsally, not unlike the patterns seen on butterfly wings diurnal; by night, butterflyfish hide in reef crevices and exhibit markedly different coloration (assombrissement des couleurs claires et diminution des contrastes) territorial, they occur as heterosexual pairs au stade juvénile, les jeunes poissons différent de forme et de couleurs et il est fréquent qu'ils soient marqués par une tache sombre de part et d'autre de leur flanc dont la forme peut évoquer celle d'un œil pas de dimorphisme sexuel dioecism; pelagic spawners (they release many buoyant eggs into the water, which become part of the plankton, floating with the currents until hatching) form pairs during breeding, svt monogames pour la vie oeufs et larves pélagiques; le stade larvaire dure environ 2 mois nonguarders, no parental care hybridation possible great swimming capabilities, maneuvering through coral reefs with ease, even swimming sideways or upside down
Identification keys to Chaetodons

schéma

all 3 tropical oceans
inféodés aux milieux tropicaux (qq cas de migration lessepsienne)
highly compressed, rounded body, looking like smaller versions of angelfish (Pomacanthidae), but unlike these, lack preopercle spines at the gill covers
corps ovale et très comprimé latéralement
front dessine une courbure concave jusqu'à la bouche
mouth small with elongate snout, terminal and protrusible with a band or rows of small brushlike teeth
dorsal fin continuous
swim bladder
bright conspicuous coloration
most with a dark band across the eye and an 'eyespot' dorsally, not unlike the patterns seen on butterfly wings
diurnal; by night, butterflyfish hide in reef crevices and exhibit markedly different coloration (assombrissement des couleurs claires et diminution des contrastes)
territorial, they occur as heterosexual pairs
au stade juvénile, les jeunes poissons différent de forme et de couleurs et il est fréquent qu'ils soient marqués par une tache sombre de part et d'autre de leur flanc dont la forme peut évoquer celle d'un œil
pas de dimorphisme sexuel
dioecism; pelagic spawners (they release many buoyant eggs into the water, which become part of the plankton, floating with the currents until hatching)
form pairs during breeding, svt monogames pour la vie
oeufs et larves pélagiques; le stade larvaire dure environ 2 mois
nonguarders, no parental care
hybridation possible
great swimming capabilities, maneuvering through coral reefs with ease, even swimming sideways or upside down

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Identification keys to Chaetodons

Etymologies		Source
Chaetodonidae	Greek, chaite = hair + Greek, odous = teeth	fishbase
Chelmon	Greek, cheilon, -onos = a grey mullet	fishbase
Forcipiger	Latin, forceps = instrument of the pincers kind used for seizing and holding objects, esp. in surgical and obstetric operations + latin, gero = to carry	fishbase
Hemitaurichthys	Greek, hemi = half + Greek, taureia = skin of bull + Greek, ichthys = fish	fishbase
Heniochus	Greek: enioi, -ai, -a = sometimes, some + Greek: oche = food	fishbase
Heniochus	grec Hêniokhos Ήνιοχός = celui qui tient les rênes, cocher	doris



Chaetodons

Chaetodon adiergastos 2007 N-Bali by Jim Greenfield (via fishbase)	Chaetodon auriga Kwajalein (Marshall Islands) ©Randall, John E. (via fishbase)	Chaetodon austriacus 2007 by Tim Sheerman-Chase (via Wikimedia Commons)


Chaetodon bennetti 2008 N-Sulawesi (Indonesia) by Jim Greenfield (via fishbase)	Chaetodon capistratus 2005 by Chris Huss (via Wikimedia Commons)	Chaetodon citrinellus 2005 Great Barrier (Au) by Erik Schlogl (via Encyclopedia of Life)


Chaetodon collare Maldives ©Randall, John E. (via fishbase)		Chaetodon decussatus 1989 Bali by Bernard E. Picton (via Wikimedia Commons)


Chaetodon dialeucos 2016 Oman ©mda (via INaturalist)	Chaetodon ephippium 2005 Cairns by Leonard Low (via Wikimedia Commons)


Chaetodon falcula ©Randall, John E. (via Encyclopedia of Life)	Chaetodon fasciatus 2011 Hurghada (Egypt) ©mda (via INaturalist)


Chaetodon guttatissimus 1999 Tanzania by Bernard E. Picton (via Wikimedia Commons)		Chaetodon interruptus Maldives ©Randall, John E. (via fishbase)


Chaetodon kleinii ©mda (via GooglePhotos)	Chaetodon larvatus 2014 aquarium (Cairo) by Hatem Moushir (via Encyclopedia of Life)	Chaetodon lineolatus 2006 Osprey Reef (Au) by Erik Schlogl (via Encyclopedia of Life)


Chaetodon lunula Kiribati Is ©Randall, John E. (via fishbase)	Chaetodon lunulatus 2012 Fiji ©Paul Asman (via fishbase)	Chaetodon melannotus 2002 Great Barrier (Au) by Erik Schlogl (via Encyclopedia of Life)


Chaetodon melapterus 2001 Fahl Is. (Oman) ©Field, Richard (via fishbase)	Chaetodon mertensii Guam ©Randall, John E. (via fishbase)	Chaetodon meyeri 2008 Sulawesi Sud by Mark Rosenstein (via Encyclopedia of Life)


Chaetodon miliaris Midway Islands ©Randall, John E. (via fishbase)		Chaetodon nigropunctatus Muscat (Persian Gulf/Iran) ©Randall, John E. (via fishbase)


Chaetodon ocellatus 2016 Playa (Yucatan) ©mda (via INaturalist)	Chaetodon octofasciatus Sulawesi ©Randall, John E. (via fishbase)	Chaetodon ornatissimus 2008 N-Sulawesi by Jim Greenfield (via fishbase)


Chaetodon oxycephalus Palau ©Randall, John E. (via fishbase)	Chaetodon paucifasciatus Red Sea ©Randall, John E. (via fishbase)	Chaetodon rafflesii Marshall Is ©Randall, John E. (via fishbase)


Chaetodon reticulatus 2013 Bunaken (Sulawesi) by Mark Rosenstein (via Encyclopedia of Life)	Chaetodon selene 1990 Sipadan (Malaysia) by Bernard E. Picton (via Wikimedia Commons)	Chaetodon semilarvatus 2013 Hurghada (Egypt) ©mda (via INaturalist)


Chaetodon speculum D'Entrecasteaux Is. (Papua NG) ©Randall, John E. (via fishbase)	Chaetodon striatus Belize ©Randall, John E. (via fishbase)	Chaetodon trifascialis Marshall Is. ©Randall, John E. (via fishbase)


Chaetodon trifasciatus 2010 Maldives by Mark Rosenstein (via Encyclopedia of Life)		Chaetodon unimaculatus By Leonard Low (via Wikimedia Commons)


Chaetodon vagabundus Raja Ampat ©David R (via Encyclopedia of Life)	Chaetodon xanthocephalus 2015 Maldives ©mda (via INaturalist)	Chaetodon xanthurus 2014 Komodo (D) ©Mark Rosenstein (via Encyclopedia of Life)
	Poissons papillons
Chaetodons

Chelmon rostratus
fishbase / fr.wiki / aquaportail / fishesofaustralia / nomadica / monaconature / australianmuseum	Synonymes Copperband butterflyfish / Chelmon à bec médiocre / Beaked coralfish	Linnaeus, 1758 / LC / ITIS 169684

2014 Lankayan (Borneo) ©mda (via INaturalist)	2015 Thailand ©Markevich A.I. (via fishbase)	2015 Queensland (Au) by Ian V Shaw (via fishesofaustralia)


Sabah (Borneo) by Bernard DUPONT (via fishesofaustralia)	Visayas (Ph) by Klaus Stiefel (via fishesofaustralia)	aquarium (NL) ©J Bukkems (via fishbase)


Fiji ©Frank M Greco (via fishbase)	aquarium (US) ©Stephen Walker (via fishbase)	2015 Queensland (Au) by Ian V Shaw (via fishesofaustralia)


Sulawesi ©Randall, John E. (via fishbase)	by I, Luc Viatour (via Wikimedia Commons)	1999 Great Barrier (Au) by Erik Schlogl (via fishesofaustralia)
W-Pacifiq (from Andaman)	Chelmon à bandes cuivrées	tropical
long museau; three orange bars and an ocellus on the dorsal fin rays; dark-margined orange bar through the eye and a blue-edged bar across the caudal peduncle
<25m / 20cm / 10ans	dioecism, fécondation externe, monogame, disting pairing, openwater	found singly and in pairs, territorial
Chelmon rostratus




Coradion chrysozonus
fishbase / nomadica / fishesofaustralia / reeflifesurvey / souslesmers	Synonymes Orangebanded coralfish / Goldengirdled coralfish	Cuvier, 1831 / LC / ITIS 610248

2012 Lembeh ©mda (via INaturalist)	2012 Lembeh ©mda (via INaturalist)	2011 Raja Ampat ©JMP (via GooglePhotos)


2011 Raja Ampat ©JMP (via GooglePhotos)	2012 Lembeh ©mda (via INaturalist)	2019 Malapascua (Ph) by vranken martin (via fishbase)


Palau ©Mark Rosenstein (via fishesofaustralia)	2017 Philippines by Rickard Zerpe (via Wikimedia Commons)	2012 Exmouth (Au) by Kristin Anderson (via fishesofaustralia)


Lembeh ©Mark Rosenstein (via fishesofaustralia)	Philippines ©Randall, John E. (via fishbase)	2017 Panglao, (Ph)by Zsispeo (via fishesofaustralia)
W-Pacifiq	Coradion à bandes oranges	tropical
white with 4 gold bands, the first through the eye, and the middle two bands (orangée devenant noires vers le bas) meeting at the bottom to form a V; small ocellus (noir cerclé de blanc) slightly high on rear dorsal fin; black on tail (blanc) base a spot looking like a band; pelvic fins black
3-60m / 15cm	dioecism, fécondation externe	Form pairs during breeding
Coradion chrysozonus

Forcipiger flavissimus
fishbase / reef-guardian / souslesmers / aquaportail / doris / fijireeffish / fishesofaustralia / nomadica / monaconature / australianmuseum	Synonymes Longnose butterfly fish / Chelmon à long bec	Jordan & McGregor, 1898 / LC / ITIS 169663

2012 Bunaken (Sulawesi) ©mda (via GooglePhotos)	2014 Komodo ©mda (via INaturalist)	2011 Raja Ampat ©JMP (via GooglePhotos)


Banda Aceh (ID) by Rick Stuart-Smith (via fishesofaustralia)	2012 Bunaken (Sulawesi) ©mda (via GooglePhotos)	2012 Bunaken (Sulawesi) ©mda (via GooglePhotos)


2012 Mirihi (Maldives) ©Rainer Kretzberg (via fishbase)	2013 PNG by Nick Hobgood (via Wikimedia Commons)	2012 Mirihi (Maldives) ©Rainer Kretzberg (via fishbase)


2004 Hawaii by LASZLO ILYES (via Wikimedia Commons)	2015 Hawaii by jboord (via Encyclopedia of Life)	Banda Aceh (ID) by Rick Stuart-Smith (via fishesofaustralia)


Rabbit Is. (Oahu/Hawaii) ©Randall, John E. (via fishbase)	aquarium (Cape Town) by Dennis Polack (via Encyclopedia of Life)	2014 Palau by Mark Rosenstein (via Encyclopedia of Life)
Indo & Pacifiq & Mer Rouge	Poisson-pincette jaune	tropical
long museau (plus court de 30% que longirostris) et petite bouche; citron avec une tache noire près de sa nageoire caudale ressemblant à un oeil; tête noire en haut et blanche en bas; queue transparente
2-145m / 22cm / 18ans video	dioecism, ovipare, fécondation externe, openwater, nonguarder, distinct pairing, monogame	benthopelagiq, territorial, solitary or in small groups of up to 5 individuals; timide
Forcipiger flavissimus

Forcipiger longirostris
fishbase / fr.wiki / aquaportail / doris / reef-guardian / fijireeffish / fishesofaustralia / nomadica	Synonymes Chelmon à très long bec / Longnose butterflyfish	Broussonet, 1782 / LC / ITIS 169662

2011 Raja Ampat ©mda (via fishbase)	2015 Maldives ©mda (via INaturalist)	2007 PNG by Clark Anderson (via Wikimedia Commons)


2015 Pemuteran (Bali) by Karen Honeycutt (via fishbase)	1998 Coral Sea (Au) by Erik Schlogl (via Encyclopedia of Life)	2013 Fiji by Mark Rosenstein (via Encyclopedia of Life)


Lembeh by Dennis Polack FishWise Professional (via fishesofaustralia)	Banda Aceh (ID) by Ian V Shaw (via fishesofaustralia)	Maldives by Ahmed Abdul Rahman (via fishesofaustralia)


at night, 2010 Fiji by Mark Rosenstein (via Encyclopedia of Life)	2017 South-Africa by Brian Gratwicke (via Encyclopedia of Life)	2012 Mirihi (Maldives) ©Rainer Kretzberg (via fishbase)
Indo-Pacifiq	Porte-pincette à long bec	tropical
très semblable à flavissimus, bec 30% + long
3-200m / 22cm	ovipare, dioecism, fécondation externe, openwater, distinct pairing, monogame	uncommon, benthopelagiq, usually seen in pairs
Forcipiger longirostris

Hemitaurichthys polylepis
fishbase / doris / fr.wiki / saltwatersmarts fishesofaustralia / nomadica / monaconature / australianmuseum	Synonymes Pyramid butterflyfish	Bleeker, 1857 / LC / ITIS 169658

2012 Bunaken (Sulawesi) ©mda (via INaturalist)	2012 Bunaken (Sulawesi) ©mda (via INaturalist)	1995 Marshall Is. ©Randall, John E. (via fishbase)


2016 Coral Sea by Ian Shaw (via fishesofaustralia)	2010 Sipadan (Borneo) by Bernard DUPONT (via Wikimedia Commons)	Polynesia by Rick Stuart-Smith (via fishesofaustralia)


2009 Bunaken (Sulawesi) by Bernard DUPONT (via Wikimedia Commons)	2016 Polynesia by Zsispeo (via fishesofaustralia)	2006 by Jenny (JennyHuang) (via Encyclopedia of Life)


2015 Komodo by Mark Rosenstein (via Encyclopedia of Life)	Bunaken by Bernard DUPONT (via fishesofaustralia)	2005 Great Barrier (Au) by Erik Schlogl (via Encyclopedia of Life)
E-Indo & W-Pacifiq	Papillon pyramide jaune	tropical
museau légèrement étiré en pointe avec une petite bouche protractile terminale; tête brun-jaune sombre (dont l'intensité de la teinte peut varier); body & tail white; insertion de zones jaune-orangé au niveau du haut des flancs formant une sorte de pyramide; nageoire anale jaune-orangé
3-60m / 18cm	ovipare, dioecism, fécondation externe	common, in large schools in steep current-swept outer reef slopes, benthopelagiq
Hemitaurichthys polylepis

Hemitaurichthys zoster
fishbase / fr.wiki / wikimonde / nomadica	Synonymes Brown-and-white butterflyfish	Bennett, 1831 / LC / ITIS 169660

2015 Maldives ©mda (via INaturalist)	2015 Maldives ©mda (via INaturalist)	2015 Maldives ©mda (via INaturalist)


2015 Maldives ©JMP (via GooglePhotos)	2015 Maldives ©mda (via GooglePhotos)	2015 Maldives ©mda (via GooglePhotos)


2015 Thailand by BEDO (via Wikimedia Commons)		2015 Maldives ©mda (via GooglePhotos)


2016 Maldives by Thibdx (via Wikimedia Commons)	2014 Baa Atoll (Maldives) ©Frédéric Ducarme (via Wikimedia Commons)	2011 Sodwana Bay (SA) by Derek Keats (via Wikimedia Commons)


Maldives ©Randall, John E. (via fishbase)	2011 Mirihi (Maldives) ©Rainer Kretzberg (via fishbase)	2011 Mirihi (Maldives) ©Rainer Kretzberg (via fishbase)
Indo & W-Pacifiq	Pyramide noire	tropical
fond noir (tête & corps) traversé en son centre par une large bande blanche en forme de trapèze dont la partie sommitale, correspondant au centre de la nageoire dorsale (noire avec rayons jaunes); caudale & pelviennes blanches; pectorales transparentes
<40m / 18cm	ovipare, dioecism, fécondation externe, form pairs during breeding	Form large schools
Hemitaurichthys zoster

Heniochus

Heniochus acuminatus 2006 Aquarium (Monterey) I, Tewy (via Wikimedia Commons)	Heniochus chrysostomus 2011 Raja Ampat ©mda (via INaturalist)	Heniochus diphreutes 2007 by NPS photo ©Bryan Harry (via Wikimedia Commons)


Heniochus intermedius 1999 Jeddah (Saudi Arabia) ©Field, Richard (via fishbase)	Heniochus monoceros Kerama Is. (Japan) ©Randall, John E. (via fishbase)	Heniochus pleurotaenia Maldives ©Randall, John E. (via Encyclopedia of Life)


Heniochus singularius Osprey Reef (Au) ©Randall, John E. (via fishbase)	Heniochus varius Palau ©Randall, John E. (via fishbase)
Heniochus

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