Sandy ridgefin eel Sandy skate Sandy sprat Sandy stargazer Sandyback stingaree Sanguinello pygmygoby Sankomenuke Santa Ana sucker Santa Cruz pupfish Santana’s dwarfgoby Santee chub Santer seabream Sanzo's goby Sao Tomé clingfish Saowisata wrasse Sapayo cichlid Saposhnikovi shad Sapphire damsel Sapphire devil Sapphire Skate Sapphire stiphodon Sarabia cichlid Sarah's fairygoby Sarasin's goby Sarasins minnow Sarato's goby Sarawak Giant Threadfin Sarawak pygmy swell shark Sarcastic fringehead Sardinata Sardine cisco Sardinella razorbelly minnow Sargasso dwarf snailfish Sargassum blenny Sargassum pipefish Sargassum triggerfish Sargassumfish Sar's wolf eel Sasal's Sicyopus Sash flounder Satinfin shiner Satomi's pygmy seahorse Sattar snowtrout Saucereye porgy Sauger Saugeye Saumarez Gurnard Sauro lizardfish Saury Savage's birdsnouted whalefish