| Trichocephalus leporis Froelich, 1789 |
| Trichocephalus muris Schrank, 1788 |
| Trichocephalus suis Schrank, 1788 |
| Trichocephalus vulpes Froelich, 1789 |
| Trichodes von Linstow, 1874 |
| Trichodes crassicauda Bellingham, 1845 |
| Trichosoma Rudolphi, 1819 |
| Trichosoma contortum Creplin, 1839 |
| Trichosoma gracile Bellingham, 1845 |
| Trichosoma putorii Rudolphi, 1819 |
| Trichosoma recurva Solger, 1877 |
| Trichosoma sonsinoi Parona, 1897 |
| Trichosoma speciosum Van Beneden, 1873 |
| Trichosoma spinulosum von Linstow, 1890 |
| Trichosomoides Railliet, 1895 |
| Trichosomoides crassicauda (Bellingham, 1845) Railliet, 1895 |
| Trichosomoidinae Hall, 1916 |
| Trichosomum Creplin, 1829 |
| Trichosomum tomentosum Dujardin, 1843 |
| Trichuridae Ransom, 1911 |