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
               [Genus "Anguis" nom. inval.] see Genus Anguis Linnaeus, 1758
                 1 "Vipera" nom. inval.
                 2 "Caecilia" nom. inval.
                 3 "Aspis" nom. inval.
                 4 "Caudisona" nom. inval.
                 5 "Cobras de Cabelo" nom. inval.
                 6 "Anguis Aesculapii" nom. inval.
                 7 "Cenchris" nom. inval.
                 8 "Natrix" nom. inval.
                 9 "Hydrus" nom. inval.