| Allocreadiidae Looss, 1902 |
| Allocreadium Looss, 1900 |
| Allocreadium lobatum Wallin, 1909 |
| Allocreadium mexicanum Osorio-Sarabia, Pérez-Ponce de León & Salgado-Maldonado, 1986 |
| Allocreadium priacanthi MacCallum, 1921 |
| Auriculostoma Scholz, Aguirre-Macedo & Choudhury, 2004 |
| Auriculostoma astyanace Scholz, Aguirre-Macedo & Choudhury, 2004 |
| Auriculostoma astyanace Salgado-Maldonado, Caspeta-Mandujano, Moravec, Soto-Galera, Rodiles-Hernández, Cabañas-Carranza & Montoya-Mendoza, 2011 nec Scholz, Aguirre-Macedo & Choudhury, 2004 |
| Auriculostoma lobata Hernández-Mena, Lynggaard, Mendoza-Garfias & Pérez-Ponce de León, 2016 |
| Auriculostoma totonacapanensis Razo-Mendivil, Mendoza-Garfias, Pérez-Ponce de León & Rubio-Godoy, 2014 |
| Crepidostomum Braun, 1900 |
| Crepidostomum cooperi Hopkins, 1931 |
| Crepidostomum cooperi Salgado-Maldonado & Osorio-Sarabia, 1987 nec Hopkins, 1931 |
| Crepidostomum cornutum (Osborn, 1903) Stafford, 1904 |
| Creptotrema Travassos, Artigas & Pereira, 1928 |
| Creptotrema agonostomi Salgado-Maldonado, Cabañas-Carranza & Caspeta-Mandujano, 1998 |
| Creptotrematina Yamaguti, 1954 |
| Creptotrematina aguirrepequenoi Jiménez-Guzmán, 1973 |
| Creptotrematina aguirrepequenoi Pérez-Ponce de León, Mendoza-Garfias, Rosas-Valdéz & Choudhury, 2013 nec Jiménez-Guzmán, 1973 |
| Margotrema Lamothe-Argumedo, 1970 |