Imperium naturæ C. Linnaeus, 1758 - nature
   Mundus Plinius - physical world
     naturalia - natural bodies
       Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
           Branchiostegi Linnaeus, 1758
             Diodon Linnaeus, 1758 - porcupinefish
               Diodon holocanthus Linnaeus, 1758 - balloonfish