| Syllis annularis Verrill, 1900 |
| Syllis antoniae Salcedo-Oropeza, San Martín & Solís-Weiss, 2012 |
| Syllis armillaris (O.F. Müller, 1771) |
| Syllis barbata (San Martín, 1992) |
| Syllis bella (Chamberlin, 1919) |
| Syllis beneliahuae (Campoy & Alquézar, 1982) |
| Syllis broomensis (Hartmann-Schröder, 1979) |
| Syllis catenula Verrill, 1900 |
| Syllis clavata Claparède, 1863 |
| Syllis corallicola Verrill, 1900 |
| Syllis corallicoloides Augener, 1922 |
| Syllis cornuta Rathke, 1843 |
| Syllis danieli (San Martín, 1992) |
| Syllis deleoni Salcedo-Oropeza, San Martín & Solís-Weiss, 2012 |
| Syllis divaricata Keferstein, 1862 |
| Syllis elongata (Johnson, 1901) |
| Syllis fasciata (Malmgren, 1867) |
| Syllis ferrugina (Langerhans, 1881) |
| Syllis fertilis Verrill, 1900 |
| Syllis fulgurans Audouin & H. Milne-Edwards, 1833 |