Eukaryota  >  Ciliophora  >  Spirotrichea  >  Stichotrichida

Family	Genus	Species
Amphisiellidae	8	39
Chaetospiridae	1	1
Cladotrichidae	1	2
Epiclintidae	1	3
Kahliellidae	6	12
Keronidae	1	2
Parabirojimidae	1	3
Psilotrichidae	2	2
Schmidingerotrichidae	1	4
Spirofilidae	6	20
Strongylidiidae	1	1