Class
Order
Family
Subfamily
Valid Species
Actinopterygii
Acipenseriformes
Acipenseridae
26
Polyodontidae
2
Albuliformes
Albulidae
Albulinae
10
Pterothrissinae
Amiidae
1
Anguilliformes
Anguillidae
18
Chlopsidae
22
Colocongridae
Congridae
Bathymyrinae
50
Congrinae
112
Heterocongrinae
34
Derichthyidae
3
Heterenchelyidae
8
Moringuidae
15
Muraenesocidae
Muraenidae
Muraeninae
164
Uropterygiinae
38
Myrocongridae
5
Nemichthyidae
9
Nettastomatidae
43
Ophichthidae
Myrophinae
58
Ophichthinae
253
Protoanguillidae
Serrivomeridae
Synaphobranchidae
Ilyophinae
Simenchelyinae
Synaphobranchinae
11
Ateleopodiformes
Ateleopodidae
13
Atheriniformes
Atherinidae
Atherininae
Atherinomorinae
27
Bleheratherininae
Craterocephalinae
Atherinopsidae
Atherinopsinae
29
Menidiinae
80
Bedotiidae
16
Dentatherinidae
Isonidae
Melanotaeniidae
76
Notocheiridae
Phallostethidae
21
Pseudomugilidae
Telmatherinidae
Aulopiformes
Alepisauridae
Anotopteridae
Aulopidae
Bathysauridae
Bathysauroididae
Chlorophthalmidae
19
Evermannellidae
Giganturidae
Ipnopidae
33
Notosudidae
17
Omosudidae
Paralepididae
59
Paraulopidae
14
Pseudotrichonotidae
Scopelarchidae
Synodontidae
Harpadontinae
23
Synodontinae
45
Batrachoidiformes
Batrachoididae
Batrachoidinae
24
Halophryninae
30
Porichthyinae
Thalassophryninae
Beloniformes
Adrianichthyidae
Adrianichthyinae
4
Oryziinae
28
Belonidae
Exocoetidae
65
Hemiramphidae
62
Scomberesocidae
Zenarchopteridae
63
Beryciformes
Anomalopidae
Anoplogastridae
Berycidae
Diretmidae
Holocentridae
Holocentrinae
40
Myripristinae
44
Monocentridae
Trachichthyidae
47
Cetomimiformes
Barbourisiidae
Cetomimidae
Rondeletiidae
Characiformes
Acestrorhynchidae
Alestidae
120
Anostomidae
144
Characidae
Agoniatinae
Aphyocharacinae
Aphyoditeinae
20
Astyanax clade
148
Bramocharax clade
Bryconinae
61
Bryconops clade
Characinae
86
Cheirodontinae
Clupeacharacinae
Gymnocharacinae
7
Hemigrammus clade
285
Heterocharacinae
6
Iguanodectinae
Jupiaba clade
Pseudochalceus clade
Rhoadsiinae
Salmininae
Stethaprioninae
Stevardiinae
296
Tetragonopterinae
Chilodontidae
Citharinidae
Crenuchidae
Characidiinae
79
Crenuchinae
Ctenoluciidae
Curimatidae
101
Cynodontidae
Cynodontinae
Roestinae
Distichodontidae
96
Erythrinidae
Gasteropelecidae
Hemiodontidae
Hepsetidae
Lebiasinidae
Lebiasininae
Pyrrhulininae
Parodontidae
Prochilodontidae
Serrasalmidae
92
Clupeiformes
Chirocentridae
Clupeidae
198
Denticipitidae
Engraulidae
146
Pristigasteridae
39
Sundasalangidae
Cypriniformes
Balitoridae
Balitorinae
234
Nemacheilinae
560
Catostomidae
78
Cobitidae
Botiinae
56
Cobitinae
180
Cyprinidae
Acheilognathinae
72
Alburninae
68
Barbinae
688
Cultrinae
77
Cyprininae
Danioninae
303
ex-danioninae
41
Gobioninae
199
Labeoninae
371
Leptobarbinae
Leuciscinae
555
No subfamily
397
Squaliobarbinae
Tincinae
Xenocyprinae
Gyrinocheilidae
Psilorhynchidae
Vaillantellidae
Cyprinodontiformes
Anablepidae
Anablepinae
Oxyzygonectinae
Aplocheilidae
Cyprinodontidae
Cubanichthyinae
Cyprinodontinae
119
Fundulidae
Goodeidae
Empetrichthyinae
Goodeinae
Nothobranchiidae
249
Poeciliidae
Aplocheilichthyinae
Poeciliinae
266
Procatopodinae
57
Profundulidae
Rivulidae
349
Valenciidae
Elopiformes
Elopidae
Megalopidae
Esociformes
Esocidae
Umbridae
Gadiformes
Bregmacerotidae
Euclichthyidae
Gadidae
Lotidae
Macrouridae
Bathygadinae
Macrourinae
361
Macrouroidinae
Trachyrincinae
Melanonidae
Merlucciidae
Merlucciinae
Steindachneriinae
Moridae
107
Muraenolepididae
Phycidae
Gasterosteiformes
Aulorhynchidae
Gasterosteidae
Hypoptychidae
Indostomidae
Pegasidae
Gobiesociformes
Gobiesocidae
Cheilobranchinae
Gobiesocinae
147
Gonorynchiformes
Chanidae
Gonorynchidae
Kneriidae
Phractolaemidae
Gymnotiformes
Apteronotidae
84
Gymnotidae
37
Hypopomidae
Rhamphichthyidae
Sternopygidae
Incertae sedis
Elassomatidae
Lampriformes
Lampridae
Lophotidae
Radiicephalidae
Regalecidae
Stylephoridae
Trachipteridae
Veliferidae
Lepisosteiformes
Lepisosteidae
Lophiiformes
Antennariidae
Brachionichthyidae
Caulophrynidae
Centrophrynidae
Ceratiidae
Chaunacidae
Diceratiidae
Gigantactinidae
Himantolophidae
Linophrynidae
Lophichthyidae
Lophiidae
Melanocetidae
Neoceratiidae
Ogcocephalidae
70
Oneirodidae
64
Tetrabrachiidae
Thaumatichthyidae
Myctophiformes
Myctophidae
250
Neoscopelidae
Notacanthiformes
Halosauridae
Notacanthidae
Ophidiiformes
Aphyonidae
Bythitidae
Brosmophycinae
109
Bythitinae
88
Carapidae
Carapinae
Pyramodontinae
Tetragondacninae
Ophidiidae
Brotulinae
Brotulotaeniinae
Neobythitinae
184
Ophidiinae
54
Parabrotulidae
Osmeriformes
Alepocephalidae
97
Argentinidae
Bathylagidae
Galaxiidae
Aplochitoninae
Galaxiinae
Lepidogalaxiidae
Leptochilichthyidae
Microstomatidae
Opisthoproctidae
Osmeridae
Platytroctidae
Plecoglossidae
Retropinnidae
Prototroctinae
Retropinninae
Salangidae
Osteoglossiformes
Arapaimidae
Gymnarchidae
Hiodontidae
Mormyridae
195
Notopteridae
Osteoglossidae
Pantodontidae
Perciformes
Acanthuridae
85
Acropomatidae
32
Amarsipidae
Ambassidae
48
Ammodytidae
Anabantidae
31
Anarhichadidae
Aplodactylidae
Apogonidae
Apogoninae
317
Pseudaminae
Ariommatidae
Arripidae
Artedidraconidae
Badidae
Banjosidae
Bathyclupeidae
Bathydraconidae
Bathymasteridae
Blenniidae
Blenniinae
Salariinae
306
Bovichtidae
Bramidae
Caesionidae
Callanthiidae
Callionymidae
187
Caproidae
Carangidae
Caristiidae
Centracanthidae
Centrarchidae
Centrogenyidae
Centrolophidae
Centropomidae
12
Cepolidae
Chaenopsidae
Chaetodontidae
130
Champsodontidae
Channichthyidae
25
Channidae
Cheilodactylidae
Cheimarrichthyidae
Chiasmodontidae
Chironemidae
Cichlidae
Cichlinae
502
Etroplinae
Pseudocrenilabrinae
1074
Ptychochrominae
Cirrhitidae
Clinidae
Coryphaenidae
Creediidae
Cryptacanthodidae
Dactyloscopidae
Datnioididae
Dichistiidae
Dinolestidae
Dinopercidae
Draconettidae
Drepaneidae
Echeneidae
Eleginopsidae
Eleotridae
Butinae
46
Eleotrinae
125
Embiotocidae
Emmelichthyidae
Enoplosidae
Ephippidae
Epigonidae
Gempylidae
Gerreidae
51
Glaucosomatidae
Gobiidae
Amblyopinae
Gobiinae
1064
Gobionellinae
381
Oxudercinae
Sicydiinae
111
Grammatidae
Haemulidae
Haemulinae
Plectorhinchinae
36
Hapalogenyidae
Harpagiferidae
Helostomatidae
Howellidae
Icosteidae
Istiophoridae
Kraemeriidae
Kuhliidae
Kurtidae
Kyphosidae
Girellinae
Kyphosinae
Microcanthinae
Scorpidinae
Labridae
509
Labrisomidae
118
Lactariidae
Lateolabracidae
Latidae
Latridae
Leiognathidae
Leptobramidae
Leptoscopidae
Lethrinidae
Lobotidae
Lutjanidae
108
Luvaridae
Malacanthidae
Latilinae
Malacanthinae
Menidae
Microdesmidae
Microdesminae
Ptereleotrinae
Monodactylidae
Moronidae
Mugilidae
Mullidae
Nandidae
Nematistiidae
Nemipteridae
66
Nomeidae
Nototheniidae
Odacidae
Odontobutidae
Opistognathidae
Oplegnathidae
Osphronemidae
Belontiinae
Luciocephalinae
Macropodusinae
102
Osphroneminae
Ostracoberycidae
Parascorpididae
Pempheridae
Pentacerotidae
Percichthyidae
Percidae
Etheostomatinae
204
Luciopercinae
Percinae
Perciliidae
Percophidae
Bembropinae
Hemerocoetinae
Percophinae
Pholidae
Pholidichthyidae
Pinguipedidae
Plesiopidae
Acanthoclininae
Plesiopinae
Polycentridae
Polynemidae
42
Polyprionidae
Pomacanthidae
87
Pomacentridae
385
Pomatomidae
Priacanthidae
Pseudaphritidae
Pseudochromidae
Anisochrominae
Congrogadinae
Pseudochrominae
89
Pseudoplesiopinae
Ptilichthyidae
Rachycentridae
Rhyacichthyidae
Scaridae
Scarinae
75
Sparisomatinae
Scatophagidae
Schindleriidae
Sciaenidae
290
Scombridae
Gasterochismatinae
Scombrinae
52
Scombrolabracidae
Scombropidae
Scytalinidae
Serranidae
Anthiinae
210
Epinephelinae
167
Grammistinae
Liopropomatinae
Serraninae
Siganidae
Sillaginidae
Sparidae
133
Sphyraenidae
Stichaeidae
Chirolophinae
Lumpeninae
Opisthocentrinae
Stichaeinae
Xiphisterinae
Stromateidae
Symphysanodontidae
Terapontidae
53
Tetragonuridae
Toxotidae
Trachinidae
Trichiuridae
Aphanopodinae
Lepidopinae
Trichiurinae
Trichodontidae
Trichonotidae
Tripterygiidae
Notoclininae
Tripterygiinae
162
Uranoscopidae
Xenisthmidae
Xiphiidae
Zanclidae
Zaproridae
Zoarcidae
Gymnelinae
Lycodinae
233
Lycozoarcinae
Neozoarcinae
Zoarcinae
Percopsiformes
Amblyopsidae
Aphredoderidae
Percopsidae
Pleuronectiformes
Achiridae
Achiropsettidae
Bothidae
166
Citharidae
Cynoglossidae
Cynoglossinae
67
Symphurinae
Paralichthyidae
Pleuronectidae
Paralichthodinae
Pleuronectinae
Poecilopsettinae
Rhombosoleinae
Psettodidae
Samaridae
Scophthalmidae
Soleidae
178
Polymixiiformes
Polymixiidae
Polypteridae
Saccopharyngiformes
Cyematidae
Eurypharyngidae
Monognathidae
Saccopharyngidae
Salmoniformes
Salmonidae
Coregoninae
Salmoninae
115
Thymallinae
Scorpaeniformes
Abyssocottidae
Agonidae
Agoninae
Anoplagoninae
Bathyagoninae
Bothragoninae
Brachyopsinae
Hypsagoninae
Anoplopomatidae
Apistidae
Aploactinidae
Bathylutichthyidae
Bembridae
Comephoridae
Congiopodidae
Cottidae
Cottocomephoridae
Cyclopteridae
Dactylopteridae
Ereuniidae
Eschmeyeridae
Gnathanacanthidae
Hemitripteridae
Hexagrammidae
Hexagramminae
Ophiodontinae
Oxylebiinae
Pleurogramminae
Zaniolepidinae
Hoplichthyidae
Liparidae
376
Neosebastidae
Normanichthyidae
Parabembridae
Pataecidae
Peristediidae
49
Platycephalidae
74
Plectrogeniidae
Psychrolutidae
Rhamphocottidae
Scorpaenidae
Caracanthinae
Pteroinae
Scorpaeninae
192
Sebastidae
Sebastinae
122
Sebastolobinae
Setarchidae
Synanceiidae
Choridactylinae
Minoinae
Synanceiinae
Tetrarogidae
Triglidae
Siluriformes
Akysidae
Amblycipitidae
Amphiliidae
Amphiliinae
Doumeinae
Leptoglanidinae
Anchariidae
Ariidae
Aspredinidae
Astroblepidae
55
Auchenipteridae
Auchenipterinae
71
Centromochlinae
Austroglanididae
Bagridae
212
Callichthyidae
Callichthyinae
Corydoradinae
182
Cetopsidae
Cetopsinae
Helogeninae
Chacidae
Clariidae
Claroteidae
90
Cranoglanididae
Diplomystidae
Doradidae
Erethistidae
Heptapteridae
203
Heteropneustidae
Hypophthalmidae
Ictaluridae
Lacantuniidae
Loricariidae
Ancistrinae
246
Delturinae
Hypoptopomatinae
126
Hypostominae
Lithogeninae
Loricariinae
226
Neoplecostominae
Malapteruridae
Mochokidae
205
Nematogenyidae
Olyridae
Pangasiidae
Pimelodidae
113
Plotosidae
Pseudopimelodidae
35
Schilbeidae
Scoloplacidae
Siluridae
99
Sisoridae
Glyptosterninae
172
Sisorinae
Trichomycteridae
Copionodontinae
Glanapteryginae
Sarcoglanidinae
Stegophilinae
Trichogeninae
Trichomycterinae
174
Tridentinae
Vandelliinae
Stephanoberyciformes
Gibberichthyidae
Hispidoberycidae
Melamphaidae
Stephanoberycidae
Stomiiformes
Gonostomatidae
Phosichthyidae
Sternoptychidae
Maurolicinae
Sternoptychinae
Stomiidae
Astronesthinae
60
Chauliodontinae
Idiacanthinae
Malacosteinae
Melanostomiinae
Stomiinae
Synbranchiformes
Chaudhuriidae
Mastacembelidae
Synbranchidae
Syngnathiformes
Aulostomidae
Centriscidae
Centriscinae
Macroramphosinae
Fistulariidae
Solenostomidae
Syngnathidae
Hippocampinae
73
Syngnathinae
267
Tetraodontiformes
Aracanidae
Balistidae
Diodontidae
Molidae
Monacanthidae
Ostraciidae
Tetraodontidae
189
Triacanthidae
Triacanthodidae
Triodontidae
Zeiformes
Cyttidae
Grammicolepididae
Grammicolepidinae
Macrurocyttinae
Oreosomatidae
Oreosomatinae
Pseudocyttinae
Parazenidae
Cyttopsinae
Parazeninae
Zeidae
Zenionidae
Cephalaspidomorphi
Petromyzontiformes
Petromyzontidae
Geotriinae
Mordaciinae
Petromyzontinae
Elasmobranchii
Carcharhiniformes
Carcharhinidae
Hemigaleidae
Leptochariidae
Proscylliidae
Pseudotriakidae
Scyliorhinidae
Sphyrnidae
Triakidae
Galeorhininae
Triakinae
Heterodontiformes
Heterodontidae
Hexanchiformes
Chlamydoselachidae
Hexanchidae
Lamniformes
Alopiidae
Cetorhinidae
Lamnidae
Megachasmidae
Mitsukurinidae
Odontaspididae
Pseudocarchariidae
Orectolobiformes
Brachaeluridae
Ginglymostomatidae
Hemiscylliidae
Orectolobidae
Parascylliidae
Rhincodontidae
Stegostomatidae
Pristiformes
Pristidae
Pristiophoriformes
Pristiophoridae
Rajiformes
Anacanthobatidae
Arhynchobatidae
94
Dasyatidae
Gymnuridae
Hexatrygonidae
Myliobatidae
Mobulinae
Myliobatinae
Rhinopterinae
Plesiobatidae
Potamotrygonidae
Rajidae
185
Rhinobatidae
Platyrhininae
Rhininae
Rhinobatinae
Rhynchobatinae
Urolophidae
Urotrygonidae
Squaliformes
Centrophoridae
Dalatiidae
Dalatiinae
Etmopterinae
Oxynotinae
Somniosinae
Echinorhinidae
Squalidae
Squatiniformes
Squatinidae
Torpediniformes
Hypnidae
Narcinidae
Narkidae
Torpedinidae
Holocephali
Chimaeriformes
Callorhinchidae
Chimaeridae
Rhinochimaeridae
Myxini
Myxiniformes
Myxinidae
Eptatretinae
Myxininae
Sarcopterygii
Ceratodontiformes
Neoceratodontidae
Coelacanthiformes
Latimeriidae
Lepidosireniformes
Lepidosirenidae
Protopteridae
Totals
31991