Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Superphylum Articulata Cuvier see Supraphylum Articulata Cuvier
           Phylum Arthropoda Siebold, 1848 - arthropods
             Subphylum Diantennata
               Class Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
                 Subclass Cirripedia Lamarck - barnacles and their kin see Infraclass Cirripedia Burmeister, 1834
                   Order Rhizocephala Müller, 1862 see Superorder Rhizocephala Müller, 1862
                     Genus Sacculina Thompson, 1836
                       Sacculina carcini Thompson, 1836