| Neopecoelus Manter, 1947 |
| Neopecoelus scorpaenae Manter, 1947 |
| Neoplagioporus Shimazu, 1990 |
| Neoplagioporus elongatus (Goto & Ozaki, 1930) Shimazu, 1990 |
| Opecoelidae Ozaki, 1925 |
| Opecoelina Manter, 1934 |
| Opecoelina pharynmagna Annereaux, 1943 |
| Opecoelina scorpaenae Manter, 1934 |
| Opecoelinae Ozaki, 1925 |
| Opecoeloides Odhner, 1928 |
| Opecoeloides fimbriatus (Linton, 1934) Sogandares-Bernal & Hutton, 1959 |
| Opecoeloides vitellosus (Linton, 1900) Von Wicklen, 1946 |
| Opecoelus Ozaki, 1925 |
| Opecoelus acutus (Manter, 1940) Manter, 1954 |
| Opecoelus adsphaericus Manter & Van Cleave, 1951 |
| Opecoelus inimici Yamaguti, 1934 |
| Opecoelus lutiani (Bravo-Hollis & Manter, 1957) Aken'Ova, 2007 |
| Opecoelus mexicanus Manter, 1940 |
| Opecoelus minor Yamaguti, 1934 |
| Opecoelus parapristipomatis (Yamaguti, 1934) Aken'Ova, 2007 |