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 Feræ Linnaeus, 1758 see Grandorder Ferae Linnaeus, 1758
               Genus Muſtela Linnaeus, 1758 - weasels, ermines, stoats, minks, ferrets, and polecats
                 1 Muſtela Lutris Linnaeus, 1758 see Enhydra lutris (Linnaeus, 1758)
                 2 Muſtela Lutra Linnaeus, 1758 see Lutra lutra (Linnaeus, 1758)
                 3 Muſtela Gulo Linnaeus, 1758 see Gulo gulo (Linnaeus, 1758)
                 4 Muſtela barbara Linnaeus, 1758 see Eira barbara (Linnaeus, 1758)
                 5 Muſtela Martes Linnaeus, 1758 see Martes martes (Linnaeus, 1758)
                 6 Muſtela Putorius Linnaeus, 1758 - European polecat
                 7 Muſtela Furo Linnaeus, 1758 - domestic ferret see Mustela putorius furo Linnaeus, 1758
                 8 Muſtela Zibellina Linnaeus, 1758 see Martes zibellina (Linnaeus, 1758)
                 9 Muſtela Erminea Linnaeus, 1758 - ermine