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
             1 [Order "Plagiuri" nom. inval.] see Class Mammalia Linnaeus, 1758
             2 [Order "Chondropterygii" nom. inval.] see Order Nantes Linnaeus, 1758
             3 [Order "Branchiostegi" nom. inval.] see Order Branchiostegi Linnaeus, 1758
             4 [Order "Acanthopterygii" nom. inval.] see Order Thoracici Linnaeus, 1758
             5 [Order "Malacopterygii" nom. inval.] see Class Pisces Linnaeus, 1758