| Catatropis Odhner, 1905 |
| Catatropis pacifera Noble, 1933 |
| Notocotylidae Lühe, 1909 |
| Notocotylus Diesing, 1839 |
| Notocotylus attenuatus (Rudolphi, 1809) Kossack, 1911 |
| Notocotylus ephemera (Nitzsch, 1817) Harwood, 1939 |
| Notocotylus linearis (Rudolphi, 1819) Szidat, 1936 |
| Notocotylus pacifer (Noble, 1933) Harwood, 1939 |
| Notocotylus seineti Fuhrmann, 1919 |
| Notocotylus triserialis Diesing, 1839 |
| Paramonostomum Lühe, 1909 |
| Paramonostomum obtortum Caballero, 1942 |