Phylum Protozoa (Goldfuss, 1818) C.T. von Siebold, 1854 see Kingdom Protozoa Goldfuss, 1818
   1 Class Sarkodina see Class Sarcodina
   2 Class Mastigophora Diesing, 1866 see Subphylum Mastigophora Diesing, 1866
   3 Class Sporozoa Leuckart, 1879 see Class Sporozoea
   4 Class Infusoria see Phylum Ciliophora Doflein, 1901