Smoothback skate  (Rajella ravidula)

Taxonomy of Fishes

• Osteichthyes - Bony fishes->
• Chondrichthyes - Cartilaginous fishes->

  • Elasmobranchii - Sharks and Rays->

    • Lamniformes - Mackerel sharks->
    • Carcharhiniformes - Ground sharks->
    • Rhinopristiformes - Shovelnose rays->
    • Torpediniformes - Electric rays->
    • Rajiformes - Skates and rays->

      • Rajidae - Skates->

        • Raja - Raja->
        • Dipturus - Dipturus->
        • Amblyraja - Amblyraja->
        • Beringraja - Beringraja->
        • Breviraja - Breviraja->
        • Dactylobatus - Dactylobatus->
        • Dentiraja - Dentiraja->
        • Hongeo - Hongeo->
        • Leucoraja - Leucoraja->
        • Malacoraja - Malacoraja->
        • Neoraja - Neoraja->
        • Okamejei - Okamejei->
        • Orbiraja - Orbiraja->
        • Rajella - Rajella->

          • Annandale’s skate (Rajella annandalei)
          • Bigthorn skate (Rajella barnardi)
          • Deep-water ray (Rajella bathyphila)
          • Bigelow’s ray (Rajella bigelowi)
          • Munchskin skate (Rajella caudaspinosa)
          • Challenger skate (Rajella challengeri)
          • Ghost skate (Rajella dissimilis)
          • Galapagos grey skate (Rajella eisenhardti)
          • Sooty skate (Rajella fuliginea)
          • Round ray (Rajella fyllae)
          • Mid-Atlantic skate (Rajella kukujevi)
          • Leopard skate (Rajella leoparda)
          • Sailray (Rajella lintea)
          • Blackish skate (Rajella nigerrima)
          • Sparsely-thorned skate (Rajella paucispinosa)
          • Purplebelly skate (Rajella purpuriventralis)
          • Smoothback skate (Rajella ravidula)
          • Brazilian skate (Rajella sadowskii)
        • Rostroraja - Rostroraja->
        • Spiniraja - Spiniraja->
      • Anacanthobatidae - Smooth skates->
      • Arhynchobatidae - Softnose skates->
      • Gurgesiellidae - Pygmy skates->
    • Orectolobiformes - Carpet shark->
    • Squatiniformes - Angelsharks->
    • Heterodontiformes - Bullhead and horn sharks->
    • Hexanchiformes - Six-gill sharks->
    • Myliobatiformes - Stingrays->
    • Squaliformes - Sleeper and dogfish sharks->
    • Echinorhiniformes - Bramble sharks->
    • Pristiophoriformes - Saw sharks->
  • Holocephali - Chimaeras->
• Agnatha - Jawless fishes->