| Boehmiella Gebauer, 1932 |
| Boehmiella wilsoni Lucker, 1943 |
| Cooperiinae Skrjabin & Schulz, 1937 |
| Haemonchinae Skrjabin & Schulz, 1937 |
| Haemonchus Cobb, 1898 |
| Haemonchus contortus (Rudolphi, 1803) Cobb, 1898 |
| Lamothiella González-Ortega, 1984 |
| Lamothiella romerolagi González-Ortega, 1984 |
| Libyostrongylinae Durette-Desset & Chabaud, 1977 |
| Obeliscoides Graybill, 1924 |
| Obeliscoides cuniculi (Graybill, 1923) Graybill, 1924 |
| Obeliscus Graybill, 1923 |
| Obeliscus cuniculi Graybill, 1923 |
| Tapironema Durette-Desset, Chabaud & Sutton, 1997 |
| Tapironema coronatum Durette-Desset, Chabaud & Sutton, 1997 |
| Teporingonema Harris, 1985 |
| Teporingonema cerropeladoensis Harris, 1985 |
| Trichostrongylidae Leiper, 1908 |
| Trichostrongylinae Leiper, 1912 |
| Trichostrongylus Looss, 1905 |