Fam. Trichodinidae Claus, 1874

- Dipartiella G. Stein, 1961
- Hemitrichodina Basson & Van As, 1989
- Pallitrichodina Van As & Basson, 1993 [V A & B in Aescht, 2001]
- Paratrichodina Lom, 1963
- Semitrichodina Kazubski, 1958
- Trichodina Ehrenbeg, 1830
- Trichodinella Sràmek-Husek, 1953
- Tripartiella Lom, 1959 [Raabe, 1963; syn. of Semitrichodina]
- Vauchomia Mueller, 1938

Incertae sedis in Family Trichodinidae

- Acyclochaeta Zick, 1928 [syn. of Trichodina]