• Spratelloides delicatulus delicate round herring
  
• Sprattus sprattus sprat
  espadin
  Sprott
  kil'ka
  sprot
  kilohaili
  skarpsill
  czprot
  
• Squaliolus laticaudus Dwarf shark
  Squale nain
  Tiburón enano
  
• Squalus acanthias picked dog-fish
  Aiguillat commun
  galludos
  Dornhai
  spinarolo
  koljuchaja akula
  pigghå
  pighaj
  koscenjak
  doornhaai
  piikkihait
  pigghaj
  kolén
  cação galhudo
  mahmuzlu camgöz
  karish kotzani
  háfur
  irsh
  mazzola
  
• Squalus blainvillei Longnose spurdog
  Aiguillat galludo
  Galludo
  spinarolo bruno
  kostilj
  kocálas
  camgöz
  tax-xewk
  
• Squatina aculeata Sawback angelshark
  Ange de mer epineux
  Angelote espinudo
  
• Squatina oculata Smoothback angelshark
  Ange de mer de Bonaparte
  Pez angel
  
• Squatina squatina Angelshark
  Ange de mer commun
  Angelote
  Meerengel
  zeeëngel
  
• Stenodus leucichthys güldenstadt's whitefish
  nel'ma
  
• Stephanolepis diaspros
• Stephanolepis hispidus
• Sternoptyx diaphana
• Sternoptyx pseudobscura
• Stomias boa
• Stomias brevibarbatus
• Stromateus fiatola butterfish
  fiatole
  palometa fiatola
  
• Stylephorus chordatus Thread-tail
  
• Sudis hyalina
• Svetovidovia lucullus
• Symbolophorus veranyi
• Symphodus bailloni vieille
  tort
  Baillon's lipvis
  bodião
  
• Symphodus cinereus rouquie
  tort roquer
  
• Symphodus doderleini rouquié
  laggion
  hinac
  
• Symphodus mediterraneus axillary wrasse
  crénilabre rouquié
  tordo de roca
  tordo rosso
  cicurusa
  chiloú
  sifton yam-tikhoni
  
• Symphodus melanocercus clavière
  lamprega
  
• Symphodus melops corkwing
  crénilabre
  cannadeo
  grönaade
  savgylte
  kosirica
  zwartooglipvis
  skårsmultra
  
• Symphodus ocellatus crénilabre ocellé
  tordo
  tordo ocellato
  kinjusa
  chiloú
  sifton enoni
  
• Symphodus roissali langaneu
  tort
  tordo
  kinjusà
  chiloú
  
• Symphodus rostratus sublaire
  grivieta
  subietto
  
• Symphodus tinca peacock wrasse
  crénilabre paon
  señorita
  rdo pavone
  lumbrak
  kóssyphos
  sifton tawwasi
  
• Symphurus ligulatus elongate tonguesole
  plagusie longue
  lingua lunga
  
• Symphurus nigrescens spotted tonguesole
  plagusie sombre
  pelada
  lingua di cane
  lingua
  
• Symphurus reticulatus
• Synaphobranchus kaupi Kaup's arrowtooth eel
  
• Synaptura lusitanica portuguese sole
  sole ruardon commune
  lenguado portugès
  
• Synchiropus phaeton lagarto rojo
  
• Syngnathus abaster aguja de rio
  pesce ago di rio
  
• Syngnathus acus great pipefish
  aiguille de mer
  mula
  rosse Seenadel
  pesce ago
  kantnaal
  stor tangnål
  grote zeenaald
  
• Syngnathus phlegon aguja espinosa
  pesce ago pelagico
  
• Syngnathus rostellatus syngnathe de duméril
  kleine zeenaald
  
• Syngnathus schmidti
• Syngnathus taenionotus
• Syngnathus tenuirostris syngnathe a long museau
  mula
  
• Syngnathus typhle deep-snouted pipefish
  siphonostome
  aguja mula
  schmalschnäuzige Seenadel
  esce ago cavallino
  angsnelde
  almindelig tangnål
  trompetterzeenaald
  
• Syngnathus variegatus
• Synodus saurus atlantic lizardfish
  lézard
  pez de San Francisco
  Eidechsenfisch
  pesce lucertola
  lagartoda-costa
  scarmòs
  
• Synodus synodus red lizard fish
  lagarto
  
• Taaningichthys bathyphilus
• Taaningichthys minimus
• Taaningichthys paurolychnus