Exogone parahomoseta mediterranea San Martín, 1984 accepted as Parexogone meridionalis (Cognetti, 1955) (original description)
Haplosyllis depressa chamaeleon Laubier, 1960 accepted as Haplosyllis chamaeleon Laubier, 1960 (basis of record)
Haplosyllis spongicola tentaculata Marion, 1877 accepted as Haplosyllis spongicola (Grube, 1855) (source of synonymy)
Langerhansia beneliahui Campoy, 1982 accepted as Syllis beneliahuae (Campoy, 1982) (new combination reference)
Langerhansia garciai Campoy, 1982 accepted as Syllis garciai (Campoy, 1982) (new combination reference)
Salvatoria dolichopoda (Marenzeller, 1874) accepted as Salvatoria clavata (Claparède, 1863) (source of synonymy)
Streptosyllis templadoi San Martín, 1984 accepted as Streptospinigera templadoi (San Martín, 1984) (original description)
Syllides japonica edentata Westheide, 1974 accepted as Syllides edentatus Westheide, 1974 (source of synonymy)
Syllis (Typosyllis) cirropunctata Michel, 1909 accepted as Branchiosyllis cirropunctata (Michel, 1909) (redescription)
Syllis garciai (Campoy, 1982) (additional source)
Syllis westheidei San Martín, 1984 (original description)
Typosyllis columbretensis Campoy, 1982 accepted as Syllis columbretensis (Campoy, 1982) (new combination reference)
Typosyllis gerundensis Alós & Campoy, 1981 accepted as Syllis gerundensis (Alós & Campoy, 1981) (new combination reference)
Typosyllis golfonovensis Hartmann-Schröder, 1962 accepted as Syllis golfonovensis (Hartmann-Schröder, 1962) (new combination reference)

 Validity

 for Syllides articulocirratus Gillandt, 1979

The assignment of this species to Syllides is under debate. [details]