Classification
(master taxon) [(master rank)]Protoctista [kingdom]
Ciliophora [phylum]
Polyhymenophora [class]
Spirotricha [subclass]
Heterotrichida [order]
Heterotrichina [suborder]
Subordo Heterotrichina bevat de volgende taxa:
Condylostomatidae [family]
Peritromidae [family]
Spirostomidae [family]
Stentoridae [family]