Kingdom Protista (Haeckel, 1866) - protists Phylum Sarcomastigophora Honigberg & Balamuth, 1963 Subphylum Opalinata Wenyon, 1926 see Superclass Opalinata Wenyon, 1926 Class Opalinatea Wenyon, 1926 see Class Opalinea Wenyon, 1926 Genus Opalina Purkinje & Valentin, 1835