| Carneophallus Cable & Kuns, 1951 |
| Carneophallus muellhaupti Coil, 1956 |
| Carneophallus trilobatus Cable & Kuns, 1951 |
| Levinseniella Stiles & Hassall, 1901 |
| Levinseniella carteretensis Coil & Heard, 1966 |
| Levinseniella leptophallus Coil, 1956 |
| Levinseniella propinqua Jägerskiöld, 1907 |
| Levinseniella yucatanensis Canaris & Lei-Ching, 1989 |
| Levinseniellinae Stiles & Hassall, 1901 |
| Levinseniellini Stiles & Hassall, 1901 |
| Maritrema Nicoll, 1907 |
| Maritrema corai Hernández-Orts, Pinacho-Pinacho, García-Varela & Kostadinova, 2016 |
| Maritrema glandulosa Coil, 1955 |
| Maritrema kostadinovae Hernández-Orts, Capasso, Pinacho-Pinacho & García-Varela, 2020 |
| Maritrema patulum Coil, 1955 |
| Maritrematinae Nicoll, 1907 |
| Maritrematini Nicoll, 1907 |
| Maritreminoides Rankin, 1939 |
| Maritreminoides patulus (Coil, 1955) Cable, Connors & Balling, 1960 |
| Maritreminoides raminellae Dery, 1958 |