Acoetes Audouin & Milne Edwards, 1832 (basis of record)
Aglaophamus rubellus (Michaelsen, 1896) accepted as Aglaophamus agilis (Langerhans, 1880) (basis of record)
Amage gallasii Marion, 1875 (basis of record)
Ampharete gracilis Malmgren, 1866 accepted as Anobothrus gracilis (Malmgren, 1866) (source of synonymy)
Arabella (Arabella) iricolor (Montagu, 1804) accepted as Arabella iricolor (Montagu, 1804) (basis of record)
Aricidea (Acmira) catherinae Laubier, 1967 (basis of record)
Aricidea (Acmira) lopezi Berkeley & Berkeley, 1956 (basis of record)
Aricidea (Acmira) simplex Day, 1963 (basis of record)
Aricidea (Acmira) trilobata Imajima, 1973 (basis of record)
Aricidea (Allia) monicae Laubier, 1967 accepted as Aricidea (Strelzovia) monicae Laubier, 1967 (basis of record)
Aricidea (Aricidea) [Webster, 1879, sensu stricto] (basis of record)
Aricidea (Aricidea) fauveli Hartman, 1957 accepted as Aricidea (Acmira) lopezi Berkeley & Berkeley, 1956 (basis of record)
Aricidea (Aricidea) fragilis Webster, 1879 (basis of record)
Aricidea (Aricidea) pseudoarticulata Hobson, 1972 (basis of record)
Aricidea cerruti [auctt. misspelling] accepted as Aricidea cerrutii Laubier, 1966 represented as Aricidea (Acmira) cerrutii Laubier, 1966 (basis of record)
Artacamini (basis of record)
Aurospio banyulensis (Laubier, 1966) (basis of record)
Bushiella (Bushiella) Knight-Jones, 1973 (basis of record)
Ceratocephale pacifica (Hartman, 1960) (basis of record)
Ceratonereis (Composetia) vittata Langerhans, 1884 (basis of record)
Chaunorhynchus andaman (Hylleberg & Nateewathana, 1988) accepted as Ceratocephale andaman Hylleberg & Natewathana, 1988 (basis of record)
Chaunorhynchus loveni (Malmgren, 1867) accepted as Ceratocephale loveni Malmgren, 1867 (basis of record)
Chaunorhynchus pacificus (Hartman, 1960) accepted as Ceratocephale pacifica (Hartman, 1960) (basis of record)
Circeini (basis of record)
Crossostoma Gosse, 1855 accepted as Amphicteis Grube, 1850 (basis of record)
Ehlersia (Syllis) Lamarck, 1818 accepted as Syllis Lamarck, 1818 (basis of record)
Eteone siphodonta (Delle Chiaje, 1830) accepted as Mysta siphodonta (Delle Chiaje, 1830) (basis of record)
Eulalia (Pterocirrus) Claparède, 1868 accepted as Pterocirrus Claparède, 1868 (basis of record)
Eulalia (Sige) (basis of record)
Eumenia jeffreysii McIntosh, 1869 accepted as Lipobranchius jeffreysii (McIntosh, 1869) (source of synonymy)
Eumida (Eumida) (basis of record)
Eumida longicirrata Hartmann-Schröder, 1975 represented as Eumida (Eumida) longicirrata Hartmann-Schröder, 1975 (basis of record)
Flemingia Johnston, 1846 accepted as Pherusa Oken, 1807 (basis of record)
Genicularia Quenstedt, 1857 † (basis of record)
Genicularia (Glandifera) Regenhardt, 1961 † (basis of record)
Harmothoe (Austrolaenilla) (basis of record)
Harmothoe (Austrolaenilla) mollis (M. Sars in G.O. Sars, 1872) accepted as Austrolaenilla mollis (Sars, 1872) (basis of record)
Hermionopsis Seidler, 1923 (basis of record)
Hesioninae Grube, 1850 (basis of record)
Ioda [auctt.] accepted as Ioida Johnston, 1839 accepted as Syllis Lamarck, 1818 (basis of record)
Iospilinae Bergström, 1914 (basis of record)
Lemintina Risso, 1826 (basis of record)
Lugiinae Bergström, 1914 (basis of record)
Malacoceros tetracerus (Schmarda, 1861) (basis of record)
Microphthalmus sczelkowii cantabrica Rioja, 1925 accepted as Microphthalmus aberrans (Webster & Benedict, 1887) (source of synonymy)
Mystides (Pseudomystides) (basis of record)
Myzostomum cirriferum Leuckart, 1836 accepted as Myzostoma cirriferum Leuckart, 1836 (basis of record)
Neanthes heteroculata (Hartmann-Schröder, 1981) (basis of record)
Nereiphylla castanea (Marenzeller, 1879) (basis of record)
Nereis (Nephthys) (basis of record)
Nicomache (Nicomache) (basis of record)
Nicomache (Nicomache) minor Arwidsson, 1906 (basis of record)
Nothria hyperborea (Hansen, 1878) (basis of record)
Omphalopomopsis Saint-Joseph, 1894 (basis of record)
Onuphinae (basis of record)
Onuphis geophiliformis (Moore, 1903) (basis of record)
Ophiodromini (basis of record)
Orbinia (Orbinia) sertulata (Savigny, 1822) represented as Orbinia sertulata (Savigny, 1822) (basis of record)
Orbinia (Phylo) grubei McIntosh, 1910 accepted as Phylo grubei (McIntosh, 1910) (basis of record)
Orbinia (Phylo) kupfferi (Ehlers, 1874) accepted as Phylo kupfferi (Ehlers, 1874) (basis of record)
Paradexiospira (Paradexiospira) Caullery & Mesnil, 1897 (basis of record)
Paradexiospira (Spirorbides) Chamberlin, 1919 (basis of record)
Paranaitis abyssalis (Hartmann-Schröder, 1975) (basis of record)
Paraonides lyra [auctt.] accepted as Paradoneis lyra (Southern, 1914) (basis of record)
Pectinaria (Amphictene) auricoma mediterranea Nilsson, 1928 accepted as Amphictene auricoma mediterranea (Nilsson, 1928) (source of synonymy)
Phyllodoce lineata (Claparède, 1870) (basis of record)
Phyllodoce pusilla (Claparède, 1870) accepted as Nereiphylla pusilla (Claparède, 1870) (basis of record)
Pilarginae Saint-Joseph, 1899 (basis of record)
Pileolariini (basis of record)
Podarkeopsis arenicolus (La Greca, 1946) (basis of record)
Polynoe (Robertianella) (basis of record)
Prionospio (Prionospio) dubia Day, 1961 represented as Prionospio dubia Day, 1961 (basis of record)
Prionospio (Prionospio) ehlersi Fauvel, 1928 accepted as Prionospio ehlersi Fauvel, 1928 (basis of record)
Prionospio (Prionospio) steenstrupi Malmgren, 1867 accepted as Prionospio steenstrupi Malmgren, 1867 (basis of record)
Protolaeospira (Protolaeospira) (basis of record)
Protoleodora Pillai, 1970 (basis of record)
Pterocirrus limbatus (Claparède, 1868) (basis of record)
Rhynchonerella petersii (Langerhans, 1880) accepted as Rhynchonereella petersii (Langerhans, 1880) (basis of record)
Saenuris barbata Grube, 1860 accepted as Capitella capitata (Fabricius, 1780) (source of synonymy)
Scolelepis (Scolelepis) foliosa (Audouin & Milne Edwards, 1833) (basis of record)
Spirorbis (Spirillum) (basis of record)
Spirorbis (Spirillum) lucidus (Montagu, 1803) (basis of record)
Spirorbis (Spirorbis) Daudin, 1800 (basis of record)
Spirorbis lucidus represented as Spirorbis (Spirillum) lucidus (Montagu, 1803) (basis of record)
Synelminae Salazar-Vallejo, 1987 (basis of record)
Terebellini Johnston, 1846 (basis of record)
Thelepini (basis of record)
Tomopteris pagenstecheri Quatrefages, 1866 accepted as Tomopteris (Johnstonella) helgolandica (Greeff, 1879) (source of synonymy)
Trypanosyllis (Trypanosyllis) (basis of record)
Trypanosyllis (Trypanosyllis) coeliaca Claparède, 1868 accepted as Pseudosyllis brevipennis Grube, 1863 (basis of record)
Typosyllis cirropunctata (Michel, 1909) accepted as Branchiosyllis cirropunctata (Michel, 1909) (basis of record)