Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758
           [Class "Pisces" nom. inval. - fishes] see Class Pisces Linnaeus, 1758
             [Order "Malacopterygii" nom. inval.] see Class Pisces Linnaeus, 1758
               [Genus "Osmerus" nom. inval.] see Genus Osmerus Linnaeus, 1758
                 1 "Eperlanus" nom. inval.
                 1.0 ["Spirinchus" nom. inval.] see Eperlanus nom. inval.
                 2 "Saurus" nom. inval.