Ray-finned fishes finder
| Common name | Scientific name | Family | Order |
|---|---|---|---|
| Slender Suckerfish | Echeneis naucrates | Echeneidae | Perciformes |
| Slender Sunfish | Ranzania laevis | Molidae | Tetraodontiformes |
| Slender Weed Whiting | Siphonognathus attenuatus | Labridae | Perciformes |
| Slingjaw Wrasse | Epibulus insidiator | Labridae | Perciformes |
| Sloane's Viperfish | Chauliodus sloani | Stomiidae | Stomiiformes |
| Smalleye Gudgeon | Prionobutis microps | Eleotridae | Perciformes |
| Smalleye Squaretail | Tetragonurus cuvieri | Tetragonuridae | Perciformes |
| Smallhead Sole | Soleichthys microcephalus | Soleidae | Pleuronectiformes |
| Smallmouth Hardyhead | Atherinosoma microstoma | Atherinidae | Atheriniformes |
| Smallscale Bullseye | Pempheris compressa | Pempheridae | Perciformes |
| Smallspine Turretfish | Tetrosomus reipublicae | Ostraciidae | Tetraodontiformes |
| Smooth Anglerfish | Histiophryne bougainvilli | Antennariidae | Lophiiformes |
| Smooth Flutemouth | Fistularia commersonii | Fistulariidae | Gasterosteiformes |
| Smooth Golden Pufferfish | Lagocephalus inermis | Tetraodontidae | Tetraodontiformes |
| Smooth Goosefish | Lophiodes mutilus | Lophiidae | Lophiiformes |
| Smooth Toadfish | Tetractenos glaber | Tetraodontidae | Tetraodontiformes |
| Smoothspine Leatherjacket | Cantheschenia longipinnis | Monacanthidae | |
| Snake Mackerel | Gempylus serpens | Gempylidae | Perciformes |
| Snakeskin Wrasse | Eupetrichthys angustipes | Labridae | Perciformes |
| Snapper | Pagrus auratus | Sparidae | Perciformes |
| Snipe Eel | Nemichthyidae | Anguilliformes | |
| Snubnose Dart | Trachinotus blochii | Carangidae | Perciformes |
| Snubnose Eel | Simenchelys parasitica | Synaphobranchidae | Anguilliformes |
| Soft Leftvent Angler | Haplophryne mollis | Linophrynidae | Lophiiformes |
| Softcoral Pipefish | <em>Siokunichthys</em> <em>breviceps</em> | Syngnathidae | Gasterosteiformes |
| Soldier | Gymnapistes marmoratus | Scorpaenidae | Scorpaeniformes |
| Sombre Sweetlips | Plectorhinchus schotaf | Haemulidae | Perciformes |
| South Seas Demoiselle | Chrysiptera taupo | Pomacentridae | Perciformes |
| Southern Blue Devil | Parapelsiops meleagris | Plesiopidae | Perciformes |