Galapagos bullhead shark  (Heterodontus quoyi)

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->
    • Orectolobiformes - Carpet shark->
    • Squatiniformes - Angelsharks->
    • Heterodontiformes - Bullhead and horn sharks->

      • Heterodontidae - Heterodontidae->

        • Heterodontus - Heterodontus->

          • Horn shark (Heterodontus francisci)
          • Port Jackson shark (Heterodontus portusjacksoni)
          • Crested hornshark (Heterodontus galeatus)
          • Japanese bullhead shark (Heterodontus japonicus)
          • Mexican hornshark (Heterodontus mexicanus)
          • Oman bullhead shark (Heterodontus omanensis)
          • Galapagos bullhead shark (Heterodontus quoyi)
          • Whitespotted bullhead shark (Heterodontus ramalheira)
          • Zebra bullhead shark (Heterodontus zebra)
    • Hexanchiformes - Six-gill sharks->
    • Myliobatiformes - Stingrays->
    • Squaliformes - Sleeper and dogfish sharks->
    • Echinorhiniformes - Bramble sharks->
    • Pristiophoriformes - Saw sharks->
  • Holocephali - Chimaeras->
• Agnatha - Jawless fishes->