Amblyosyllis Grube, 1857 (redescription)
Amblyosyllis formosa (Claparède, 1863) accepted as Amblyosyllis spectabilis (Johnston in Baird, 1861) (additional source)
Autolytinae Langerhans, 1879 (additional source)
Ehlersia Quatrefages, 1866 accepted as Syllis Lamarck, 1818 (source of synonymy)
Ehlersia cornuta (Rathke, 1843) accepted as Syllis cornuta Rathke, 1843 (source of synonymy)
Erinaceusyllis San Martín, 2003 (original description)
Erinaceusyllis erinaceus (Claparède, 1863) (additional source)
Eusyllinae Malaquin, 1893 (additional source)
Eusyllis Malmgren, 1867 (redescription)
Eusyllis assimilis Marenzeller, 1875 (additional source)
Eusyllis blomstrandi Malmgren, 1867 (redescription)
Eusyllis lamelligera Marion & Bobretzky, 1875 (redescription)
Exogone Örsted, 1845 (redescription)
Exogone (Exogone) Örsted, 1845 (basis of record)
Exogone (Exogone) dispar (Webster, 1879) accepted as Exogone dispar (Webster, 1879) (additional source)
Exogone (Exogone) naidina Örsted, 1845 accepted as Exogone naidina Örsted, 1845 (redescription)
Exogone gemmifera Pagenstecher, 1862 accepted as Exogone naidina Örsted, 1845 (source of synonymy)
Exogoninae Langerhans, 1879 (additional source)
Myrianida prolifera (O.F. Müller, 1788) (redescription)
Pionosyllis Malmgren, 1867 (redescription)
Sphaerosyllis Claparède, 1863 (additional source)
Syllidae Grube, 1850 (taxonomy source)
Syllidae Grube, 1850 (identification resource)
Syllides Örsted, 1845 (redescription)
Syllinae Grube, 1850 (additional source)
Syllis Lamarck, 1818 (additional source)
Syllis armillaris (O.F. Müller, 1776) (redescription)
Typosyllis Langerhans, 1879 accepted as Syllis Lamarck, 1818 (source of synonymy)
Typosyllis fasciata (Malmgren, 1867) accepted as Syllis fasciata Malmgren, 1867 (source of synonymy)