Species (527)
- Spirostomum ambiguum Müller 1786
- Stentor caeruleus Ehrenberg 1830
- Stentor iqneus
- Stentor roeseli Ehrenberg 1835
- Stentor muelleri Ehrenberg 1831
- Urolentus filum Ehrenberg 1833
- Blepharisma hyalinum Perty 1852
- Blepharisma lateritia Ehrenberg 1831
- Blepharisma ovatum Penard 1884
- Blepharisma persicinum Perty 1849
- Climacostomum virens Ehrenberg 1833
- Conchophthirus magna
- Condylostoma caudatum Lauterborn 1908
- Enchelis caudata Müller 1786
- Nyctotherus cordiformis
- Metopus recurvatus
- Condylostomides terricola Foissner 1995
- Metopus contortus Levander 1867
- Plagiotoma lumbrici Schrank 1803
- Metopus caudatus Cunha 1915
- Metopus caudatus Penard 1922
- Mirofolliculina limnoriae Giard 1883
- Mirofolliculina limnoriae Dons 1927
- Condylostomides luteus Kahl 1932
- Stentor barretti Barrett 1870
- Stentor barretti sensu Kent 1881
- Stentor elegans sensu Dumas 1930