| Ascocotyle tenuicollis Price, 1935 |
| Centrocestus Looss, 1899 |
| Centrocestus formosanus (Nishigori, 1924) Price, 1932 |
| Euhaplorchis Martin, 1950 |
| Euhaplorchis californiensis Martin, 1950 |
| Galactosomum Looss, 1899 |
| Galactosomum fregatae Pearson, 1973 nec Prudhoe, 1949 |
| Galactosomum puffini Yamaguti, 1941 |
| Haplorchis Looss, 1899 |
| Haplorchis pumilio (Looss, 1896) Looss, 1899 |
| Heterophyidae Leiper, 1909 |
| Opisthometra Poche, 1926 |
| Opisthometra planicollis (Rudolphi, 1819) Poche, 1926 |
| Parastictodora Martin, 1950 |
| Parastictodora kancocki Martin, 1950 |
| Phagicola Faust, 1920 |
| Phagicola angrense (Travassos, 1916) Travassos, 1929 |
| Phagicola longa (Ransom, 1920) Price, 1932 |
| Phagicola macrostomus Robinson, 1956 |
| Phocitremoides Martin, 1950 |