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 Mammalia Linnaeus, 1758 - mammals
           Quadrupedia Linnaeus, 1758 see Class Mammalia Linnaeus, 1758
             Order Glires Linnaeus, 1758 see Superorder Glires Linnaeus, 1758
               Genus Hyſtrix Linnaeus, 1758 - short-tailed porcupines
                 1 Hyſtrix criſtata Linnaeus, 1758 - crested porcupine
                 2 Hyſtrix prehenſilis Linnaeus, 1758 see Coendou prehensilis (C. Linnaeus, 1758)
                 3 Hyſtrix dorſata Linnaeus, 1758 see Erethizon dorsatum (C. Linnaeus, 1758)
                 4 Hyſtrix macroura Linnaeus, 1758 see Atherurus macrourus (C. Linnaeus, 1758)
                 5 Hyſtrix brachyura Linnaeus, 1758 - Malayan porcupine