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 Belluæ Linnaeus, 1758
Genus Hippopotamus Linnaeus, 1758 - hippopotamus
1 Hippopotamus amphibius Linnaeus, 1758 - hippopotamus
2 Hippopotamus terrestris Linnaeus, 1758
see Tapirus terrestris (Linnaeus, 1758)