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 Insecta Linnaeus, 1758 - insects
           Order Aptera Linnaeus, 1758
             Genus Cancer Linnaeus, 1758 - cancer crab
               Brachyuri Linnaeus, 1758
                 Brachyuri thorace hirto
                   19 Cancer chabrus Linnaeus, 1758
                   20 Cancer araneus Linnaeus, 1758
                   21 Cancer cuphaeus Linnaeus, 1758
                   22 Cancer muscosus Linnaeus, 1758
                   23 Cancer personatus Linnaeus, 1758