| Marphysa schmardai Gravier, 1907 |
| Marphysa simplex Crossland, 1903 |
| Marphysa stylobranchiata Moore, 1909 |
| Marphysa teretiuscula (Schmarda, 1861) |
| Marphysa tibiana de Pourtalès, 1867 |
| Marphysa veracruzensis de León-González & Díaz-Castañeda, 2006 |
| Nausicaa Kinberg, 1865 |
| Nausicaa minima Hansen, 1882 |
| Nematonereis Schmarda, 1861 |
| Nematonereis hebes Verrill, 1900 |
| Nematonereis unicornis Schmarda, 1861 |
| Nicidion Kinberg, 1865 |
| Nicidion angeli (Carrera-Parra & Salazar-Vallejo, 1998) |
| Nicidion brevis Ehlers, 1887 |
| Nicidion cariboea (Grube, 1856) |
| Nicidion imogena Monro, 1924 |
| Nicidion kinbergi Webster, 1884 |
| Nicidion mutilata (Webster, 1884) |
| Nicidion obtusa (Verrill, 1900) |
| Palola J.E. Gray, 1847 |