Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Animale nom. inval. - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Pisces nom. inval. - fishes see Class Pisces Linnaeus, 1758
           Order Acanthopterygii nom. inval. see Order Thoracici Linnaeus, 1758
             Genus Mugil nom. inval. see Genus Mugil Linnaeus, 1758
               Cephalus nom. inval. see Mugil Plinius, nom. inval.