Kingdom Protista (Haeckel, 1866) - protists Phylum Ciliophora Doflein, 1901 - ciliates Class Polyhymenophorea - spirotrichs see Class Spirotrichea Bütschli, 1889 Subclass Spirotricha see Class Spirotrichea Bütschli, 1889 Order Oligotricha Bütschli, 1889 - oligotrichs see Subclass Oligotrichia Bütschli, 1889 Genus Tintinnopsis Stein, 1867