Amblyosyllis Grube, 1857 (redescription)
Amblyosyllis formosa (Claparède, 1863) accepted as Amblyosyllis spectabilis (Johnston in Baird, 1861) (additional source)
Amblyosyllis madeirensis Langerhans, 1879 (redescription)
Anoplosyllis Claparède, 1868 (redescription)
Anoplosyllis edentula Claparède, 1868 (redescription)
Autolytinae Langerhans, 1879 (additional source)
Autolytus aurantiacus (Claparède, 1868) accepted as Proceraea aurantiaca Claparède, 1868 (source of synonymy)
Branchiosyllis Ehlers, 1887 (redescription)
Branchiosyllis exilis (Gravier, 1900) (redescription)
Brania Quatrefages, 1866 (redescription)
Brania arminii (Langerhans, 1881) (redescription)
Brania clavata (Claparède, 1863) accepted as Salvatoria clavata (Claparède, 1863) (source of synonymy)
Brania limbata (Claparède, 1868) accepted as Salvatoria limbata (Claparède, 1868) (source of synonymy)
Brania oculata (Hartmann-Schröder, 1960) accepted as Brania arminii (Langerhans, 1881) (source of synonymy)
Brania pusilla (Dujardin, 1851) (redescription)
Brania swedmarki Gidholm, 1962 accepted as Salvatoria swedmarki (Gidholm, 1962) (new combination reference)
Brania tenuicirrata (Claparède, 1864) accepted as Salvatoria tenuicirrata (Claparède, 1864) (source of synonymy)
Dioplosyllis Gidholm, 1962 (redescription)
Dioplosyllis cirrosa Gidholm, 1962 (redescription)
Ehlersia Quatrefages, 1866 accepted as Syllis Lamarck, 1818 (source of synonymy)
Ehlersia cornuta (Rathke, 1843) accepted as Syllis cornuta Rathke, 1843 (source of synonymy)
Ehlersia ferrugina Langerhans, 1881 accepted as Paraehlersia ferrugina (Langerhans, 1881) (new combination reference)
Ehlersia ferrugina Langerhans, 1881 accepted as Paraehlersia ferrugina (Langerhans, 1881) (source of synonymy)
Ehlersia garciai (Campoy, 1982) accepted as Syllis garciai (Campoy, 1982) (source of synonymy)
Epigamia labordai (San Martín & López, 2002) (redescription)
Erinaceusyllis San Martín, 2003 (original description)
Erinaceusyllis belizensis (Russell, 1989) (new combination reference)
Erinaceusyllis cryptica (Ben-Eliahu, 1977) (redescription)
Erinaceusyllis erinaceus (Claparède, 1863) (additional source)
Erinaceusyllis serratosetosa (Hartmann-Schröder, 1982) (new combination reference)
Eurysyllis Ehlers, 1864 (redescription)
Eurysyllis tuberculata Ehlers, 1864 (redescription)
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) acerata San Martín & Parapar, 1990 accepted as Exogone acerata San Martín & Parapar, 1990 (basis of record)
Exogone (Exogone) lopezi San Martín, Ceberio & Aguirrezabalaga, 1996 (redescription)
Exogone (Exogone) mompasensis Martínez, Adarraga & San Martín, 2002 (redescription)
Exogone (Exogone) naidina Örsted, 1845 accepted as Exogone naidina Örsted, 1845 (redescription)
Exogone (Exogone) rostrata Naville, 1933 (redescription)
Exogone (Exogone) sorbei San Martín, Ceberio & Aguirrezabalaga, 1996 (redescription)
Exogone (Exogone) verugera (Claparède, 1868) accepted as Exogone verugera (Claparède, 1868) (redescription)
Exogone (Parexogone) Mesnil & Caullery, 1918 represented as Parexogone Mesnil & Caullery, 1918 (taxonomy source)
Exogone (Parexogone) caribensis San Martín, 1991 accepted as Parexogone caribensis (San Martín, 1991) (redescription)
Exogone (Parexogone) cognettii Castelli, Badalamenti & Lardici, 1987 represented as Parexogone cognettii (Castelli, Badalamenti & Lardicci, 1987) (redescription)
Exogone (Parexogone) convoluta Campoy, 1982 accepted as Parexogone convoluta (Campoy, 1982) (redescription)
Exogone (Parexogone) gambiae Lanera, Sordino & San Martín, 1994 (redescription)
Exogone (Parexogone) hebes (Webster & Benedict, 1884) accepted as Parexogone hebes (Webster & Benedict, 1884) (redescription)
Exogone (Parexogone) wolfi San Martín, 1991 accepted as Parexogone wolfi (San Martín, 1991) (redescription)
Exogone gemmifera Pagenstecher, 1862 accepted as Exogone naidina Örsted, 1845 (source of synonymy)
Exogoninae Langerhans, 1879 (additional source)
Grubeosyllis Verrill, 1900 accepted as Salvatoria McIntosh, 1885 (source of synonymy)
Grubeosyllis clavata (Claparède, 1863) accepted as Salvatoria clavata (Claparède, 1863) (source of synonymy)
Grubeosyllis euritmica (Sardá, 1984) accepted as Salvatoria euritmica (Sardá, 1984) (source of synonymy)
Grubeosyllis limbata (Claparède, 1868) accepted as Salvatoria limbata (Claparède, 1868) (source of synonymy)
Grubeosyllis tenuicirrata (Claparède, 1864) accepted as Salvatoria tenuicirrata (Claparède, 1864) (source of synonymy)
Grubeosyllis vieitezi (San Martín, 1984) accepted as Salvatoria vieitezi (San Martín, 1984) (source of synonymy)
Haplosyllis chamaeleon Laubier, 1960 (redescription)
Haplosyllis spongicola (Grube, 1855) (additional source)
Imajimaea draculai (San Martín & López, 2002) (redescription)
Inermosyllis San Martín, 2003 (original description)
Inermosyllis balearica (San Martín, 1982) (redescription)
Langerhansia Czerniavsky, 1881 accepted as Syllis Lamarck, 1818 (source of synonymy)
Langerhansia cornuta (Rathke, 1843) accepted as Syllis cornuta Rathke, 1843 (source of synonymy)
Langerhansia ferrugina (Langerhans, 1881) accepted as Paraehlersia ferrugina (Langerhans, 1881) (source of synonymy)
Levidorum Hartman, 1967 (taxonomy source)
Levidorum pori (Ben-Eliahu, 1977) (new combination reference)
Miscellania Martin, Alós & Sardá, 1990 (redescription)
Miscellania dentata Martin, Alós & Sardá, 1990 (redescription)
Myrianida brachycephala (Marenzeller, 1874) (basis of record)
Myrianida convoluta (Cognetti, 1953) (additional source)
Myrianida dentalia (Imajima, 1966) (redescription)
Myrianida edwarsi (Saint Joseph, 1887) (redescription)
Myrianida inermis (Saint Joseph, 1887) (redescription)
Myrianida longoprimicirrata (López, San Martín & Jiménez, 1997) (redescription)
Myrianida prolifera (O.F. Müller, 1788) (redescription)
Myrianida quindecimdentata (Langerhans, 1884) (redescription)
Myrianida rubropunctata (Grube, 1860) (basis of record)
Myrianida sanmartini Dietrich, Hager, Bönsch, Winkelmann, Schmidt & Nygren, 2015 (additional source)
Neopetitia San Martín, 2003 (original description)
Neopetitia amphophthalma (Siewing, 1956) (redescription)
Nudisyllis divaricata (Keferstein, 1862) (redescription)
Nudisyllis pulligera (Krohn, 1852) (redescription)
Odontosyllis Claparède, 1863 (redescription)
Odontosyllis ctenostoma Claparède, 1868 (redescription)
Odontosyllis fulgurans (Audouin & Milne Edwards, 1833) (redescription)
Odontosyllis gibba Claparède, 1863 (redescription)
Opisthodonta Langerhans, 1879 (redescription)
Opisthodonta morena Langerhans, 1879 (redescription)
Opisthosyllis Langerhans, 1879 (redescription)
Opisthosyllis brunnea Langerhans, 1879 (redescription)
Palposyllis Hartmann-Schröder, 1977 (redescription)
Palposyllis prosostoma Hartmann-Schröder, 1977 (redescription)
Paraehlersia San Martín, 2003 (original description)
Paraehlersia ferrugina (Langerhans, 1881) (redescription)
Parapionosyllis Fauvel, 1923 (redescription)