Senegalese sole Senegalese tonguesole Señorita Senou's goby Sentani gudgeon Sentani rainbowfish Sepia stingray Sepik glass perchlet Sepik grunter Sepik rainbowfish Sepik River halfbeak Sequatchie darter Seram blenny Séret’s dragonet Sergeant baker Sergeant-major Serpent eel Serra Spanish mackerel Serrated deepwater scorpionfish Serrated flathead Serrulate whiptail Serrulatus piranha Sevan trout Seven khramulya Seven pelvic ray flounder Seven River's minnow Sevenband cardinalfish Sevenband tonguesole Seven-banded silver biddy Seven-banded wrasse Sevenbar weedfish Sevenbarbed banjo Sevenfinger threadfin Seven-lined prickleback Sevenstriped cardinalfish Seventyfour seabream Severi’s tube-snouted ghost knifefish Severns' wrasse Severtsov's loach Sewellia albisuera Sewellia analis Sewellia breviventralis Sewellia diardi Sewellia elongata Sewellia lineolata Sewellia marmorata Sewellia patella Sewellia pterolineata Sewellia songboensis Sewellia speciosa