Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758
           [Class "Insecta" nom. inval. - insects] see Class Insecta Linnaeus, 1758
             [Order "Aptera" nom. inval.] see Order Aptera Linnaeus, 1758
               [Genus "Cancer" nom. inval.] see Genus Cancer Linnaeus, 1758
                 1 "Cancer" nom. inval.
                 2 "Astacus" nom. inval.
                 3 "Pagurus" nom. inval.
                 4 "Squilla" nom. inval.
                 5 "Majas" nom. inval.
                 6 "Eremita" nom. inval.
                 7 "Gammarus" nom. inval.