1. Genus Alcyonosyllis Glasby & Watson, 2001
2. Genus Branchiosyllis Ehlers, 1887
3. Genus Dentatisyllis Perkins, 1981
4. Genus Eurysyllis Ehlers, 1864
5. Genus Haplosyllis Langerhans, 1879
6. Genus Inermosyllis San Martín, 2003
7. Genus Karroonsyllis San Martín & López, 2003
8. Genus Megasyllis San Martín, Hutchings & Aguado, 2008
9. Genus Opisthosyllis Langerhans, 1879
10. Genus Parapterosyllis Hartmann-Schröder, 1960
11. Genus Parasphaerosyllis Monro, 1937
12. Genus Paratyposyllis Hartmann-Schröder, 1962
13. Genus Plakosyllis Hartmann-Schröder, 1956
14. Genus Ramisyllis Glasby, Schroeder & Aguado, 2012
15. Genus Rhopalosyllis Augener, 1913
16. Genus Syllis Lamarck, 1818
17. Genus Tetrapalpia San Martín, Hutchings & Aguado, 2008
18. Genus Trypanedenta Imajima & Hartman, 1964
19. Genus Trypanobia Imajima & Hartman, 1964
20. Genus Trypanospina Álvarez-Campos, Taboada, San Martín, Leiva & Riesgo, 2018
21. Genus Trypanosyllis Claparède, 1864
22. Genus Xenosyllis Marion & Bobretzky, 1875
23. Genus Aporosyllis Quatrefages, 1866 accepted as Syllis Lamarck, 1818 (subjective synonym)
24. Genus Branquiosyllis [auctt. misspelling for Branchiosyllis] accepted as Branchiosyllis Ehlers, 1887 (unaccepted > misspelling - incorrect subsequent spelling)
25. Genus Chaetosyllis Malmgren, 1867 accepted as Syllis Lamarck, 1818 (subjective synonym)
26. Genus Ehlersia Quatrefages, 1866 accepted as Syllis Lamarck, 1818 (subjective synonym)
27. Genus Eurysillis Ehlers, 1864 accepted as Eurysyllis Ehlers, 1864 (lapsus calami)
28. Genus Geminosyllis Imajima, 1966 accepted as Haplosyllis Langerhans, 1879 (superfluous replacement name, subjective synonym)
29. Genus Gnathosyllis Schmarda, 1861 accepted as Syllis Lamarck, 1818 (subjective synonym)
30. Genus Hemisyllis Verrill, 1900 accepted as Haplosyllis Langerhans, 1879 (subjective synonym)
31. Genus Ioda [auctt.] accepted as Ioida Johnston, 1839 accepted as Syllis Lamarck, 1818 (lapsus calami)
32. Genus Ioida Johnston, 1839 accepted as Syllis Lamarck, 1818 (subjective synonym)
33. Genus Langerhansia Czerniavsky, 1881 accepted as Syllis Lamarck, 1818 (subjective synonym)
34. Genus Polymastus Claparède, 1864 accepted as Eurysyllis Ehlers, 1864
35. Genus Tetraglena Quatrefages, 1866 accepted as Trypanosyllis Claparède, 1864
36. Genus Tetraglene Grube, 1863 accepted as Pseudosyllis Grube, 1863 (unaccepted > junior subjective synonym, simultaneous publication but Pseudosyllis has been preferred subsequently)
37. Genus Thoe Kinberg, 1866 accepted as Syllis Lamarck, 1818 (subjective synonym)
38. Genus Trichosyllis Schmarda, 1861 accepted as Syllis Lamarck, 1818 (subjective synonym)
39. Genus Trypanoseta Imajima & Hartman, 1964 accepted as Haplosyllis Langerhans, 1879 (subjective synonym)
40. Genus Typosyllis Langerhans, 1879 accepted as Syllis Lamarck, 1818 (subjective synonym)

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