Kingdom Protoctista Hogg, 1860
   Phylum Myxozoa Grassé, 1970, incertae sedis - myxozoans see Subphylum Myxozoa Grassé, 1970
     Class Myxosporea Bütschli, 1881
       Order Bivalvulida Shulman, 1959
         Suborder Variisporina Lom & Noble, 1984
           Family Ceratomyxidae Doflein, 1899
             Genus Ceratomyxa Thélohan, 1892
               Ceratomyxa shasta Noble, 1950