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
         Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
           Order Thoracici Linnaeus, 1758
             Genus Cyclopterus Linnaeus, 1758
               1 Cyclopterus lumpus Linnaeus, 1758 - lumpfish
               2 Cyclopterus nudus Linnaeus, 1758 see Gobiesox nudus (C. Linnaeus, 1758)