Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758
           [Class "Amphibia" nom. inval. - reptiles and amphibians] see Class Amphibia Linnaeus, 1758
             [Order "Serpentia" nom. inval.] see Order Serpentes Linnaeus, 1758
               1 [Genus "Caecilia" Linnaeus, 1748, nom. inval.] see Genus Caecilia Linnaeus, 1758
               2 [Genus "Amphisbaena" Linnaeus, 1748] see Genus Amphisbaena Linnaeus, 1758
               3 [Genus "Anguis" nom. inval.] see Genus Anguis Linnaeus, 1758
               4 [Genus "Coluber" Linnaeus, 1748, nom. inval.] see Genus Coluber Linnaeus, 1758
               5 [Genus "Cenchris" Linnaeus, 1748] see Genus Cenchris Gronovius, 1763
               6 [Genus "Crotalophorus" Linnaeus, 1748, nom. inval.]