Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
     Class Sporozoa Leuckart, 1879 see Class Sporozoea
       Order Gregarinida Poche, 1913 see Subclass Gregarinasina Dufour, 1828
         Suborder Eugregarinida see Order Eugregarinida Léger, 1899
           1 Genus Monocystis Stein, 1848
           2 Genus [Corycella] Léger, 1892
           3 Genus [Gregarina] Dufour, 1828