| Branchiosyllis oculata Ehlers, 1887 |
| Branchiosyllis pacifica Rioja, 1941 |
| Branchiosyllis riojai Góngora-Garza, García-Garza & de León-González, 2011 |
| Branchiosyllis sanmartini Góngora-Garza, García-Garza & de León-González, 2011 |
| Brania de Quatrefages, 1866 |
| Brania clavata (Claparède, 1863) |
| Brania gallagheri Perkins, 1981 |
| Brania heterocirra Rioja, 1941 |
| Brania limbata (Claparède, 1870) |
| Brania limbata subsp. arenacea Rioja, 1943 |
| Brania mediodentata Westheide, 1974 |
| Brania russelli Ruíz-Ramírez & Salazar-Vallejo, 2001 |
| Brania uebelackerae Ruíz-Ramírez & Salazar-Vallejo, 2001 |
| Brania westheidei Ruíz-Ramírez & Salazar-Vallejo, 2001 |
| Cicese Díaz-Castañeda & San Martín, 2001 |
| Cicese arenacea (Rioja, 1943) |
| Cicese sphaerosylliformis Díaz-Castañeda & San Martín, 2001 |
| Dentatisyllis Perkins, 1981 |
| Dentatisyllis brevicirra Wilson, 1991 |
| Dentatisyllis carolinae (Day, 1973) |