Kingdom Protista (Haeckel, 1866) - protists Phylum Sarcomastigophora Honigberg & Balamuth, 1963 Subphylum Mastigophora Diesing, 1866 - flagellates Class Phytomastigophorea Calkins, 1909 - photosynthetic flagellates Order Cryptomonadida Senn, 1900 - cryptomonads see Order Cryptomonadales Pascher (1913) Genus Cryptomonas Ehrenb. (1831)