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Appendix: Class Osteichthyes


Class Osteichthyes number of families*
Subclass Crossopterygii
order Coelacanthiformes (coelacanths)

1

Subclass Dipnoi
order Ceratodontiformes (Australian lungfish)


order Lepidosireniformes (South American and
African lungfishes)

1

2

Subclass Actinopterygii

Infraclass Chondrostei
order Polypteriformes (bichirs)*     1
order Acipenseriformes (sturgeons, paddlefish)         2


Infraclass Holostei
order Semionotiformes (gars)     1
order Amiiformes (bowfin)        1

Infraclass Teleostei
order Osteoglossiformes (arapaima, bonytongues)      6
order Elopiformes (ladyfish, tarpon)      2
order Albuliformes (bonefish, spiny eels)     3
order Anguilliformes (eels)  15
order Saccopharyngiformes (swallowers, pelican eels)       4
order Clupeiformes (herring, anchovies)   5
order Gonorhynchiformes (milkfish, mudheads)4
order Cypriniformes (carp, suckers, loaches)  5
order Characiformes (characins, trahiras)   10
order Siluriformes (catfishes)  34
order Gymnotiformes (knifefishes)  6
order Esociformes (pike) 2
order Osmeriformes (smelt, noodlefishes) 13
order Salmoniformes (salmons) 1
order Stomiiformes (bristlemouths, lightfish) 4
order Ateleopodiformes (jellynose fish) 1
order Aulopiformes (telescopefishes, aulopus) 13
order Myctophiformes (lanternfishes)   2
order Lampridiformes (opahs, ribbonfishes) 7
order Polymixiiformes (beardfish) 1
order Percopsiformes (perch, cavefishes)3
order Ophidiiformes (carapids, brotulas) 5
order Gadiformes (cod, hakes) 12
order Batrachoidiformes (toadfish)1
order Lophiiformes (anglerfishes) 16
order Mugiliformes (mullet)1
order Atheriniformes (silversides)8
order Beloniformes (needlefishes, flyingfishes)5
order Cyprinodontiformes (killifishes, pupfishes)8
order Stephanoberyciformes (whalefishes) 9
order Beryciformes (flashlight fishes, squirrelfishes)7
order Zeiformes (dories, oreos) 6
order Gasterosteiformes (sticklebacks, seahorses)11
order Synbranchiformes (spiny eels) 3
order Scorpaeniformes (scorpionfishes, sculpins)25
order Perciformes (perches, butterflyfishes, cichlids, tunas, and others)  148
order Pleuronectiformes (flounders)11
order Tetraodontiformes (triggerfishes, puffers, molas)9

 

*Different sources may list different numbers of families.
*Some taxonomists place fishes in the order Polypteriformes in a separate subclass, the Brachiopterygii. Other taxonomists place them in the subclass Dipnoi.

 

References

 


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