| Capillaria martinezi Caballero, 1942 |
| Capillaria obsignata Madsen, 1945 |
| Capillaria palmata Chandler, 1938 |
| Capillaria patzcuarensis Osorio-Sarabia, Pérez-Ponce de León & Salgado-Maldonado, 1986 |
| Capillaria procyonis Pence, 1975 |
| Capillaria spinulosa (von Linstow, 1890) Travassos, 1915 |
| Capillaria teixeirafreitasi Caballero-Rodríguez, 1971 |
| Capillaria xochimilcensis Caballero & Cerecero, 1943 |
| Capillariinae Railliet, 1915 |
| Eucoleus Dujardin, 1845 |
| Eucoleus gastricus (Baylis, 1926) López-Neyra, 1947 |
| Freitascapillaria Moravec, 1982 |
| Freitascapillaria moraveci Caspeta-Mandujano, Salgado-Maldonado & Vázquez, 2009 |
| Hepaticola Hall, 1916 |
| Hepaticola gastrica Baylis, 1926 |
| Ornithocapillaria Barus & Sergeeva, 1990 |
| Ornithocapillaria appendiculata (Freitas, 1933) Moravec, Salgado-Maldonado & Osorio-Sarabia, 2000 |
| Paracapillaria Mendonça, 1963 |
| Paracapillaria (Ophidiocapillaria) Moravec, 1986 |
| Paracapillaria (Ophidiocapillaria) sonsinoi Moravec, 1986 nec (Parona, 1897) Moravec, 1982 |