| Ascaropsinae Alicata & McIntosh, 1933 |
| Didelphonema Wolfgang, 1953 |
| Didelphonema longispiculata (Hill, 1939) Wolfgang, 1953 |
| Mastophorinae Quentin, 1970 |
| Mastophorus Diesing, 1853 |
| Mastophorus dipodomis Read & Milleman, 1953 |
| Mastophorus muris (Gmelin, 1790) Chitwood, B. G., 1938 |
| Physocephalus Diesing, 1861 |
| Physocephalus sexalatus (Molin, 1860) Diesing, 1861 |
| Spirocerca Railliet & Henry, 1917 |
| Spirocerca longispiculata Hill, 1939 |
| Spirocerca lupi (Rudolphi, 1809) Chitwood, B. G., 1933 |
| Spirocercidae Chitwood, B. G. & Wehr, 1932 |
| Spirocercinae Chitwood & Wehr, 1932 |
| Texicospirura Chitwood, M. B. & Cordero del CampilIo, 1966 |
| Texicospirura turki Chitwood, B. G. & Cordero del Campillo, 1966 |