| Alaria Schrank, 1788 |
| Alaria nasuae La Rue & Townsend, 1927 |
| Alariinae Hall & Wigdor, 1918 |
| Austrodiplostomum Szidat & Nani, 1951 |
| Austrodiplostomum compactum (Lutz, 1928) Dubois, 1970 |
| Austrodiplostomum mordax Szidat & Nani, 1951 |
| Bolbophorus Dubois, 1935 |
| Bolbophorus confusus (Krause, 1914) Dubois, 1935 |
| Crassiphiala Van Haitsma, 1925 |
| Crassiphiala bulboglossa Van Haitsma, 1925 |
| Crassiphialinae Sudarikov, 1960 |
| Diplostomidae Poirier, 1886 |
| Diplostominae Poirier, 1886 |
| Diplostomum Von Nordmann, 1832 |
| Diplostomum (Austrodiplostomum) Szidat & Nani, 1951 |
| Diplostomum (Austrodiplostomum) compactum (Lutz, 1928) Dubois, 1970 |
| Diplostomum (Tylodelphys) Diesing, 1850 |
| Diplostomum (Tylodelphys) americanum (Dubois, 1936) Dubois, 1961 |
| Diplostomum minimum MacCallum, 1921 |
| Fibricola Dubois, 1932 |