Species (13)
- Trichotaxis aquarum ssp. aquarum
- Trichotaxis aeruginosa Foissner 1980
- Trichotaxis caudata Ehrenberg 1838
- Trichotaxis aquarum Bürger 1906 ssp. dulcium
- Trichotaxis euplotes Dragesco 1960
- Trichotaxis crassa Claparède & Lachmann 1858
- Trichotaxis pulchra Borror 1972
- Trichotaxis fossicola Kahl 1932
- Trichotaxis multinucleatus Burkovsky 1970
- Trichotaxis rubentis Sarmiento & Guerra 1960
- Trichotaxis stagnatilis Stokes 1891
- Trichotaxis velox Quennerstedt 1869
- Trichotaxis villaensis Sarmiento & Guerra 1960