Class

Order

Family

Subfamily

Valid Species

Actinopterygii

Acipenseriformes

Acipenseridae

26

Polyodontidae

2

Albuliformes

Albulidae

Albulinae

10

Pterothrissinae

2

Amiidae

1

Anguilliformes

Anguillidae

18

Chlopsidae

22

Colocongridae

10

Congridae

Bathymyrinae

50

Congrinae

112

Heterocongrinae

34

Derichthyidae

3

Heterenchelyidae

8

Moringuidae

15

Muraenesocidae

15

Muraenidae

Muraeninae

164

Uropterygiinae

38

Myrocongridae

5

Nemichthyidae

9

Nettastomatidae

43

Ophichthidae

Myrophinae

58

Ophichthinae

253

Protoanguillidae

1

Serrivomeridae

10

Synaphobranchidae

Ilyophinae

26

Simenchelyinae

1

Synaphobranchinae

11

Ateleopodiformes

Ateleopodidae

13

Atheriniformes

Atherinidae

Atherininae

13

Atherinomorinae

27

Bleheratherininae

1

Craterocephalinae

27

Atherinopsidae

Atherinopsinae

29

Menidiinae

80

Bedotiidae

16

Dentatherinidae

1

Isonidae

5

Melanotaeniidae

76

Notocheiridae

1

Phallostethidae

21

Pseudomugilidae

18

Telmatherinidae

18

Aulopiformes

Alepisauridae

2

Anotopteridae

3

Aulopidae

11

Bathysauridae

2

Bathysauroididae

1

Chlorophthalmidae

19

Evermannellidae

8

Giganturidae

2

Ipnopidae

33

Notosudidae

17

Omosudidae

1

Paralepididae

59

Paraulopidae

14

Pseudotrichonotidae

2

Scopelarchidae

18

Synodontidae

Harpadontinae

23

Synodontinae

45

Batrachoidiformes

Batrachoididae

Batrachoidinae

24

Halophryninae

30

Porichthyinae

15

Thalassophryninae

11

Beloniformes

Adrianichthyidae

Adrianichthyinae

4

Oryziinae

28

Belonidae

45

Exocoetidae

65

Hemiramphidae

Hemiramphinae

61

Zenarchopterinae

54

Scomberesocidae

5

Beryciformes

Anomalopidae

8

Anoplogastridae

2

Berycidae

10

Diretmidae

4

Holocentridae

Holocentrinae

40

Myripristinae

44

Monocentridae

4

Trachichthyidae

47

Cetomimiformes

Barbourisiidae

1

Cetomimidae

30

Rondeletiidae

2

Characiformes

Acestrorhynchidae

14

Alestidae

120

Anostomidae

144

Characidae

Agoniatinae

2

Aphyocharacinae

21

Aphyoditeinae

20

Astyanax clade

148

Bramocharax clade

22

Bryconinae

61

Bryconops clade

19

Characinae

86

Cheirodontinae

58

Clupeacharacinae

1

Gymnocharacinae

7

Hemigrammus clade

285

Heterocharacinae

6

Iguanodectinae

11

Jupiaba clade

27

Pseudochalceus clade

5

Rhoadsiinae

7

Salmininae

4

Stethaprioninae

16

Stevardiinae

296

Tetragonopterinae

6

Chilodontidae

8

Citharinidae

8

Crenuchidae

Characidiinae

79

Crenuchinae

3

Ctenoluciidae

7

Curimatidae

101

Cynodontidae

Cynodontinae

8

Roestinae

6

Distichodontidae

96

Erythrinidae

16

Gasteropelecidae

10

Hemiodontidae

29

Hepsetidae

1

Lebiasinidae

Lebiasininae

22

Pyrrhulininae

44

Parodontidae

29

Prochilodontidae

21

Serrasalmidae

92

Clupeiformes

Chirocentridae

2

Clupeidae

198

Denticipitidae

1

Engraulidae

146

Pristigasteridae

39

Sundasalangidae

7

Cypriniformes

Balitoridae

Balitorinae

234

Nemacheilinae

560

Catostomidae

78

Cobitidae

Botiinae

56

Cobitinae

180

Cyprinidae

Acheilognathinae

72

Alburninae

68

Barbinae

688

Cultrinae

77

Cyprininae

47

Danioninae

303

ex-danioninae

41

Gobioninae

199

Labeoninae

371

Leptobarbinae

5

Leuciscinae

555

No subfamily

397

Squaliobarbinae

3

Tincinae

1

Xenocyprinae

15

Gyrinocheilidae

3

Psilorhynchidae

18

Vaillantellidae

3

Cyprinodontiformes

Anablepidae

Anablepinae

16

Oxyzygonectinae

1

Aplocheilidae

14

Cyprinodontidae

Cubanichthyinae

2

Cyprinodontinae

119

Fundulidae

43

Goodeidae

Empetrichthyinae

4

Goodeinae

44

Nothobranchiidae

249

Poeciliidae

Aplocheilichthyinae

20

Poeciliinae

266

Procatopodinae

57

Profundulidae

7

Rivulidae

349

Valenciidae

2

Elopiformes

Elopidae

7

Megalopidae

2

Esociformes

Esocidae

5

Umbridae

7

Gadiformes

Bregmacerotidae

14

Euclichthyidae

1

Gadidae

21

Lotidae

21

Macrouridae

Bathygadinae

27

Macrourinae

361

Macrouroidinae

2

Trachyrincinae

7

Melanonidae

2

Merlucciidae

Merlucciinae

23

Steindachneriinae

1

Moridae

107

Muraenolepididae

8

Phycidae

11

Gasterosteiformes

Aulorhynchidae

1

Gasterosteidae

18

Hypoptychidae

2

Indostomidae

3

Pegasidae

5

Gobiesociformes

Gobiesocidae

Cheilobranchinae

11

Gobiesocinae

147

Gonorynchiformes

Chanidae

1

Gonorynchidae

5

Kneriidae

30

Phractolaemidae

1

Gymnotiformes

Apteronotidae

84

Gymnotidae

37

Hypopomidae

20

Rhamphichthyidae

14

Sternopygidae

30

Incertae sedis

Elassomatidae

7

Lampriformes

Lampridae

2

Lophotidae

4

Radiicephalidae

1

Regalecidae

5

Stylephoridae

1

Trachipteridae

11

Veliferidae

2

Lepisosteiformes

Lepisosteidae

7

Lophiiformes

Antennariidae

47

Brachionichthyidae

14

Caulophrynidae

5

Centrophrynidae

1

Ceratiidae

4

Chaunacidae

15

Diceratiidae

6

Gigantactinidae

22

Himantolophidae

21

Linophrynidae

27

Lophichthyidae

1

Lophiidae

24

Melanocetidae

6

Neoceratiidae

1

Ogcocephalidae

70

Oneirodidae

64

Tetrabrachiidae

2

Thaumatichthyidae

8

Myctophiformes

Myctophidae

250

Neoscopelidae

6

Notacanthiformes

Halosauridae

16

Notacanthidae

11

Ophidiiformes

Aphyonidae

23

Bythitidae

Brosmophycinae

109

Bythitinae

88

Carapidae

Carapinae

28

Pyramodontinae

5

Tetragondacninae

1

Ophidiidae

Brotulinae

6

Brotulotaeniinae

4

Neobythitinae

184

Ophidiinae

54

Parabrotulidae

3

Osmeriformes

Alepocephalidae

97

Argentinidae

27

Bathylagidae

23

Galaxiidae

Aplochitoninae

3

Galaxiinae

47

Lepidogalaxiidae

1

Leptochilichthyidae

3

Microstomatidae

19

Opisthoproctidae

19

Osmeridae

14

Platytroctidae

40

Plecoglossidae

1

Retropinnidae

Prototroctinae

2

Retropinninae

4

Salangidae

20

Osteoglossiformes

Arapaimidae

2

Gymnarchidae

1

Hiodontidae

2

Mormyridae

195

Notopteridae

10

Osteoglossidae

8

Pantodontidae

1

Perciformes

Acanthuridae

85

Acropomatidae

32

Amarsipidae

1

Ambassidae

48

Ammodytidae

26

Anabantidae

31

Anarhichadidae

5

Aplodactylidae

5

Apogonidae

Apogoninae

317

Pseudaminae

20

Ariommatidae

8

Arripidae

4

Artedidraconidae

28

Badidae

19

Banjosidae

1

Bathyclupeidae

7

Bathydraconidae

18

Bathymasteridae

7

Blenniidae

Blenniinae

92

Salariinae

306

Bovichtidae

11

Bramidae

20

Caesionidae

22

Callanthiidae

14

Callionymidae

187

Caproidae

18

Carangidae

147

Caristiidae

6

Centracanthidae

9

Centrarchidae

33

Centrogenyidae

1

Centrolophidae

29

Centropomidae

12

Cepolidae

22

Chaenopsidae

97

Chaetodontidae

130

Champsodontidae

13

Channichthyidae

25

Channidae

32

Cheilodactylidae

27

Cheimarrichthyidae

1

Chiasmodontidae

32

Chironemidae

6

Cichlidae

Cichlinae

502

Etroplinae

16

Pseudocrenilabrinae

1074

Ptychochrominae

15

Cirrhitidae

34

Clinidae

84

Coryphaenidae

3

Creediidae

17

Cryptacanthodidae

4

Dactyloscopidae

48

Datnioididae

5

Dichistiidae

2

Dinolestidae

1

Dinopercidae

2

Draconettidae

14

Drepaneidae

3

Echeneidae

8

Eleginopsidae

1

Eleotridae

Butinae

46

Eleotrinae

125

Embiotocidae

23

Emmelichthyidae

16

Enoplosidae

1

Ephippidae

15

Epigonidae

37

Gempylidae

25

Gerreidae

51

Glaucosomatidae

4

Gobiidae

Amblyopinae

33

Gobiinae

1064

Gobionellinae

381

Oxudercinae

45

Sicydiinae

111

Grammatidae

13

Haemulidae

Haemulinae

96

Plectorhinchinae

36

Hapalogenyidae

7

Harpagiferidae

12

Helostomatidae

1

Howellidae

9

Icosteidae

1

Istiophoridae

10

Kraemeriidae

9

Kuhliidae

12

Kurtidae

2

Kyphosidae

Girellinae

19

Kyphosinae

14

Microcanthinae

5

Scorpidinae

12

Labridae

509

Labrisomidae

118

Lactariidae

1

Lateolabracidae

3

Latidae

11

Latridae

7

Leiognathidae

50

Leptobramidae

1

Leptoscopidae

5

Lethrinidae

41

Lobotidae

2

Lutjanidae

108

Luvaridae

1

Malacanthidae

Latilinae

28

Malacanthinae

16

Menidae

1

Microdesmidae

Microdesminae

32

Ptereleotrinae

54

Monodactylidae

6

Moronidae

6

Mugilidae

72

Mullidae

80

Nandidae

9

Nematistiidae

1

Nemipteridae

66

Nomeidae

17

Nototheniidae

59

Odacidae

12

Odontobutidae

22

Opistognathidae

79

Oplegnathidae

7

Osphronemidae

Belontiinae

2

Luciocephalinae

18

Macropodusinae

102

Osphroneminae

4

Ostracoberycidae

3

Parascorpididae

1

Pempheridae

26

Pentacerotidae

13

Percichthyidae

36

Percidae

Etheostomatinae

204

Luciopercinae

10

Percinae

12

Perciliidae

2

Percophidae

Bembropinae

24

Hemerocoetinae

23

Percophinae

1

Pholidae

15

Pholidichthyidae

2

Pinguipedidae

79

Plesiopidae

Acanthoclininae

15

Plesiopinae

34

Polycentridae

4

Polynemidae

42

Polyprionidae

4

Pomacanthidae

87

Pomacentridae

385

Pomatomidae

1

Priacanthidae

18

Pseudaphritidae

1

Pseudochromidae

Anisochrominae

3

Congrogadinae

24

Pseudochrominae

89

Pseudoplesiopinae

27

Ptilichthyidae

1

Rachycentridae

1

Rhyacichthyidae

3

Scaridae

Scarinae

75

Sparisomatinae

24

Scatophagidae

4

Schindleriidae

3

Sciaenidae

290

Scombridae

Gasterochismatinae

1

Scombrinae

52

Scombrolabracidae

1

Scombropidae

3

Scytalinidae

1

Serranidae

Anthiinae

210

Epinephelinae

167

Grammistinae

33

Liopropomatinae

31

Serraninae

80

Siganidae

32

Sillaginidae

34

Sparidae

133

Sphyraenidae

29

Stichaeidae

Chirolophinae

12

Lumpeninae

12

Opisthocentrinae

12

Stichaeinae

14

Xiphisterinae

17

Stromateidae

15

Symphysanodontidae

12

Terapontidae

53

Tetragonuridae

3

Toxotidae

7

Trachinidae

9

Trichiuridae

Aphanopodinae

18

Lepidopinae

12

Trichiurinae

16

Trichodontidae

2

Trichonotidae

9

Tripterygiidae

Notoclininae

3

Tripterygiinae

162

Uranoscopidae

51

Xenisthmidae

13

Xiphiidae

1

Zanclidae

1

Zaproridae

1

Zoarcidae

Gymnelinae

43

Lycodinae

233

Lycozoarcinae

1

Neozoarcinae

13

Zoarcinae

6

Percopsiformes

Amblyopsidae

6

Aphredoderidae

1

Percopsidae

2

Pleuronectiformes

Achiridae

34

Achiropsettidae

4

Bothidae

166

Citharidae

6

Cynoglossidae

Cynoglossinae

67

Symphurinae

77

Paralichthyidae

109

Pleuronectidae

Paralichthodinae

1

Pleuronectinae

64

Poecilopsettinae

21

Rhombosoleinae

19

Psettodidae

3

Samaridae

26

Scophthalmidae

9

Soleidae

178

Polymixiiformes

Polymixiidae

10

Polypteridae

12

Saccopharyngiformes

Cyematidae

2

Eurypharyngidae

1

Monognathidae

15

Saccopharyngidae

10

Salmoniformes

Salmonidae

Coregoninae

86

Salmoninae

115

Thymallinae

14

Scorpaeniformes

Abyssocottidae

24

Agonidae

Agoninae

15

Anoplagoninae

4

Bathyagoninae

9

Bothragoninae

2

Brachyopsinae

9

Hypsagoninae

7

Anoplopomatidae

2

Apistidae

3

Aploactinidae

47

Bathylutichthyidae

1

Bembridae

9

Comephoridae

2

Congiopodidae

8

Cottidae

250

Cottocomephoridae

9

Cyclopteridae

27

Dactylopteridae

7

Ereuniidae

3

Eschmeyeridae

1

Gnathanacanthidae

1

Hemitripteridae

8

Hexagrammidae

Hexagramminae

6

Ophiodontinae

1

Oxylebiinae

1

Pleurogramminae

2

Zaniolepidinae

2

Hoplichthyidae

11

Liparidae

376

Neosebastidae

18

Normanichthyidae

1

Parabembridae

2

Pataecidae

3

Peristediidae

49

Platycephalidae

74

Plectrogeniidae

2

Psychrolutidae

40

Rhamphocottidae

1

Scorpaenidae

Caracanthinae

4

Pteroinae

20

Scorpaeninae

192

Sebastidae

Sebastinae

122

Sebastolobinae

10

Setarchidae

6

Synanceiidae

Choridactylinae

13

Minoinae

12

Synanceiinae

10

Tetrarogidae

40

Triglidae

122

Siluriformes

Akysidae

57

Amblycipitidae

34

Amphiliidae

Amphiliinae

33

Doumeinae

29

Leptoglanidinae

28

Anchariidae

6

Ariidae

147

Aspredinidae

39

Astroblepidae

55

Auchenipteridae

Auchenipterinae

71

Centromochlinae

36

Austroglanididae

3

Bagridae

212

Callichthyidae

Callichthyinae

17

Corydoradinae

182

Cetopsidae

Cetopsinae

38

Helogeninae

4

Chacidae

3

Clariidae

115

Claroteidae

90

Cranoglanididae

5

Diplomystidae

6

Doradidae

90

Erethistidae

34

Heptapteridae

203

Heteropneustidae

4

Hypophthalmidae

4

Ictaluridae

51

Lacantuniidae

1

Loricariidae

Ancistrinae

246

Delturinae

7

Hypoptopomatinae

126

Hypostominae

184

Lithogeninae

3

Loricariinae

226

Neoplecostominae

40

Malapteruridae

19

Mochokidae

205

Nematogenyidae

1

Olyridae

4

Pangasiidae

28

Pimelodidae

113

Plotosidae

40

Pseudopimelodidae

35

Schilbeidae

66

Scoloplacidae

5

Siluridae

99

Sisoridae

Glyptosterninae

172

Sisorinae

24

Trichomycteridae

Copionodontinae

5

Glanapteryginae

15

Sarcoglanidinae

11

Stegophilinae

28

Trichogeninae

2

Trichomycterinae

174

Tridentinae

7

Vandelliinae

9

Stephanoberyciformes

Gibberichthyidae

2

Hispidoberycidae

1

Melamphaidae

57

Stephanoberycidae

4

Stomiiformes

Gonostomatidae

33

Phosichthyidae

24

Sternoptychidae

Maurolicinae

32

Sternoptychinae

43

Stomiidae

Astronesthinae

60

Chauliodontinae

9

Idiacanthinae

3

Malacosteinae

14

Melanostomiinae

195

Stomiinae

11

Synbranchiformes

Chaudhuriidae

10

Mastacembelidae

87

Synbranchidae

23

Syngnathiformes

Aulostomidae

3

Centriscidae

Centriscinae

4

Macroramphosinae

8

Fistulariidae

4

Solenostomidae

6

Syngnathidae

Hippocampinae

73

Syngnathinae

267

Tetraodontiformes

Aracanidae

12

Balistidae

41

Diodontidae

18

Molidae

4

Monacanthidae

109

Ostraciidae

28

Tetraodontidae

189

Triacanthidae

7

Triacanthodidae

23

Triodontidae

1

Zeiformes

Cyttidae

3

Grammicolepididae

Grammicolepidinae

2

Macrurocyttinae

1

Oreosomatidae

Oreosomatinae

9

Pseudocyttinae

1

Parazenidae

Cyttopsinae

3

Parazeninae

1

Zeidae

6

Zenionidae

7

Cephalaspidomorphi

Petromyzontiformes

Petromyzontidae

Geotriinae

1

Mordaciinae

3

Petromyzontinae

39

Elasmobranchii

Carcharhiniformes

Carcharhinidae

58

Hemigaleidae

9

Leptochariidae

1

Proscylliidae

7

Pseudotriakidae

3

Scyliorhinidae

147

Sphyrnidae

9

Triakidae

Galeorhininae

12

Triakinae

35

Heterodontiformes

Heterodontidae

9

Hexanchiformes

Chlamydoselachidae

2

Hexanchidae

4

Lamniformes

Alopiidae

3

Cetorhinidae

1

Lamnidae

5

Megachasmidae

1

Mitsukurinidae

1

Odontaspididae

3

Pseudocarchariidae

1

Orectolobiformes

Brachaeluridae

2

Ginglymostomatidae

3

Hemiscylliidae

17

Orectolobidae

12

Parascylliidae

8

Rhincodontidae

1

Stegostomatidae

1

Pristiformes

Pristidae

7

Pristiophoriformes

Pristiophoridae

7

Rajiformes

Anacanthobatidae

13

Arhynchobatidae

94

Dasyatidae

87

Gymnuridae

14

Hexatrygonidae

1

Myliobatidae

Mobulinae

13

Myliobatinae

22

Rhinopterinae

9

Plesiobatidae

1

Potamotrygonidae

26

Rajidae

185

Rhinobatidae

Platyrhininae

6

Rhininae

1

Rhinobatinae

48

Rhynchobatinae

6

Urolophidae

30

Urotrygonidae

17

Squaliformes

Centrophoridae

19

Dalatiidae

Dalatiinae

10

Etmopterinae

45

Oxynotinae

5

Somniosinae

17

Echinorhinidae

2

Squalidae

30

Squatiniformes

Squatinidae

22

Torpediniformes

Hypnidae

1

Narcinidae

31

Narkidae

12

Torpedinidae

23

Holocephali

Chimaeriformes

Callorhinchidae

3

Chimaeridae

39

Rhinochimaeridae

8

Myxini

Myxiniformes

Myxinidae

Eptatretinae

51

Myxininae

25

Sarcopterygii

Ceratodontiformes

Neoceratodontidae

1

Coelacanthiformes

Latimeriidae

2

Lepidosireniformes

Lepidosirenidae

1

Protopteridae

4

Totals

31981