Exogone gemmifera Pagenstecher, 1862 accepted as Exogone naidina Örsted, 1845 (additional source)
Nephthys hombergi [auct. misspellings] accepted as Nephtys hombergii Savigny in Lamarck, 1818 (taxonomy source)
Nereis (Hediste) diversicolor O.F. Müller, 1776 accepted as Hediste diversicolor (O.F. Müller, 1776) (additional source)
Nereis falsa Quatrefages, 1866 accepted as Nereis splendida Grube, 1840 (source of synonymy)
Pectinaria (Lagis) koreni (Malmgren, 1866) accepted as Lagis koreni Malmgren, 1866 (additional source)
Pholoe minuta (Fabricius, 1780) (additional source)
Polycirrus pallidus (Claparède, 1864) (new combination reference)
Polynoe scolopendrina Savigny, 1822 (additional source)
Syllis velox Bobretzky, 1870 accepted as Syllis hyalina Grube, 1863 (source of synonymy)
Terebellides carnea Bobretzky, 1868 accepted as Terebellides stroemii Sars, 1835 (redescription)
Typosyllis hyalina (Grube, 1863) accepted as Syllis hyalina Grube, 1863 (additional source)