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 Copepoda H. Milne-Edwards, 1840 - copepods
                   Order Caligoida see Order Siphonostomatoida Thorell, 1859
                     Genus Caligus O.F. Müller, 1785