| Streptosyllis pettiboneae Perkins, 1981 |
| Syllidae Grube, 1850 |
| Syllides Örsted, 1845 |
| Syllides bansei Perkins, 1981 |
| Syllides caribica Licher, 1996 |
| Syllides fulvus (Marion & Bobretzky, 1875) |
| Sylline Grube, 1860 |
| Sylline rubropunctata Grube, 1850 |
| Syllis Lamarck, 1818 |
| Syllis (Ehlersia) de Quatrefages, 1865 |
| Syllis (Ehlersia) heterochaeta Moore, 1909 |
| Syllis (Ehlersia) hyperioni Dorsey & Phillips, 1987 |
| Syllis (Typosyllis) Langerhans, 1879 |
| Syllis (Typosyllis) aciculata Treadwell, 1975 |
| Syllis (Typosyllis) alternata (Moore, 1908) |
| Syllis (Typosyllis) amica (de Quatrefages, 1865) |
| Syllis (Typosyllis) armillaris (O. F. Müller, 1776) |
| Syllis (Typosyllis) corallicola Verrill, 1900 |
| Syllis (Typosyllis) corallicoloides Augener, 1924 |
| Syllis (Typosyllis) exilis Gravier, 1900 |