Kingdom Protoctista Hogg, 1860
Phylum Myxozoa Grassé, 1970, incertae sedis - myxozoans
see Subphylum Myxozoa Grassé, 1970
Class Myxosporea Bütschli, 1881
Order Multivalvulida Shulman, 1959
Family Hexacapsulidae Shulman, 1959 [monotypic]
see Family Kudoidae Meglitsch, 1960
Genus Hexacapsula Arai & Matsumoto, 1953
see Genus Kudoa Meglitsch, 1947