Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Maxillopoda Dahl, 1956 see Subphylum Pancrustacea Zrzavý et al., 1997 Subclass Pentastomida Diesing, 1836 - tongue worms Order Cephalobaenida Heymons, 1935 Family Reighardiidae Heymons, 1935