Phylum Parabasalia Honigberg, 1973
see Infraphylum Parabasalia Honigberg, 1973
Class Trichomonadea Kirby, 1947
Order Honigbergiellida Cepicka, Hampl & Kulda, 2010
see Suborder Honigbergiellina Čepička et al., 2010
Family Hexamastigidae Cepicka, Hampl & Kulda, 2010
Genus Tetratrichomastix Mackinnon, 1913
see Genus Hexamastix Alexeieff, 1912