Schewiakoff, 1896
Cytostome at or near body surface, apical or subapical; cytopharyngeal apparatus of rhabdos type. Circumoral infraciliature unspecialized, somatic ciliation often uniformly holotrichous. Toxicysts common. Macronucleus polyploid. Body often large, many species carnivorous.
Order Prostomatida
Suborder Prorodontina
Family Colepidae