Abyssocapitella Buzhinskaja & Smirnov, 2000 (basis of record)
Abyssocapitella Buzhinskaja & Smirnov, 2000 (current name source)
Aciculomarphysa Hartmann-Schröder in Hartmann-Schröder & Zibrowius, 1998 (basis of record)
Aciculomarphysa Hartmann-Schröder in Hartmann-Schröder & Zibrowius, 1998 (current name source)
Aglaurides Ehlers, 1866 accepted as accepted as Oenone Lamarck, 1818 (source of synonymy)
Amathys Desbruyères & Laubier, 1996 accepted as Amphisamytha Hessle, 1917 (basis of record)
Amathys Desbruyères & Laubier, 1996 accepted as Amphisamytha Hessle, 1917 (source of synonymy)
Amocrodorum Kudenov, 1987 (extant flag source)
Amocrodorum Kudenov, 1987 (habitat flag source)
Amphipolydora Blake, 1983 (extant flag source)
Amphipolydora Blake, 1983 (basis of record)
Amphipolydora Blake, 1983 (current name source)
Amphipolydora Blake, 1983 (habitat flag source)
Anamobaea Krøyer, 1856 (habitat flag source)
Anamobaea Krøyer, 1856 (current name source)
Anamobaea Krøyer, 1856 (basis of record)
Anamobaea Krøyer, 1856 (extant flag source)
Andamanella Holthe, 2002 (current name source)
Andamanella Holthe, 2002 (basis of record)
Anguillosyllis Day, 1963 (current name source)
Anguillosyllis Day, 1963 (basis of record)
Anguillosyllis Day, 1963 (extant flag source)
Anguillosyllis Day, 1963 (habitat flag source)
Antipathipolyeunoa Pettibone, 1991 accepted as Parahololepidella Pettibone, 1969 (habitat flag source)
Antipathipolyeunoa Pettibone, 1991 accepted as Parahololepidella Pettibone, 1969 (extant flag source)
Apomatolos Uchida, 1978 accepted as Rhodopsis Bush, 1905 (basis of record)
Apomatolos Uchida, 1978 accepted as Rhodopsis Bush, 1905 (extant flag source)
Apomatolos Uchida, 1978 accepted as Rhodopsis Bush, 1905 (habitat flag source)
Aranooba Hutchings & Glasby, 1988 (habitat flag source)
Aranooba Hutchings & Glasby, 1988 (extant flag source)
Aristonerilla Müller, 2002 (current name source)
Aristonerilla Müller, 2002 (basis of record)
Asterophilia Hanley, 1989 (basis of record)
Asterophilia Hanley, 1989 (habitat flag source)
Asterophilia Hanley, 1989 (current name source)
Asterophilia Hanley, 1989 (extant flag source)
Atelesyllis Pruvot, 1930 accepted as Odontosyllis Claparède, 1863 (basis of record)
Atelesyllis Pruvot, 1930 accepted as Odontosyllis Claparède, 1863 (habitat flag source)
Atelesyllis Pruvot, 1930 accepted as Odontosyllis Claparède, 1863 (extant flag source)
Atelesyllis Pruvot, 1930 accepted as Odontosyllis Claparède, 1863 (source of synonymy)
Autosyllis Imajima & Hartman, 1964 accepted as Virchowia Langerhans, 1879 (extant flag source)
Autosyllis Imajima & Hartman, 1964 accepted as Virchowia Langerhans, 1879 (habitat flag source)
Autosyllis Imajima & Hartman, 1964 accepted as Virchowia Langerhans, 1879 (basis of record)
Bathya Saint-Joseph, 1894 (extant flag source)
Bathya Saint-Joseph, 1894 (basis of record)
Bathya Saint-Joseph, 1894 (habitat flag source)
Bathya Saint-Joseph, 1894 (current name source)
Bathyasychis Detinova, 1982 (basis of record)
Bathyasychis Detinova, 1982 (current name source)
Bathybahamas Pettibone, 1985 (basis of record)
Bathybahamas Pettibone, 1985 (extant flag source)
Bathybahamas Pettibone, 1985 (current name source)
Bathybahamas Pettibone, 1985 (habitat flag source)
Bathycanadia Levenstein, 1981 (habitat flag source)
Bathycanadia Levenstein, 1981 (basis of record)
Bathycanadia Levenstein, 1981 (current name source)
Bathycanadia Levenstein, 1981 (extant flag source)
Bathycatalina Pettibone, 1976 (current name source)
Bathycatalina Pettibone, 1976 (extant flag source)
Bathycatalina Pettibone, 1976 (basis of record)
Bathycatalina Pettibone, 1976 (habitat flag source)
Bathyedithia Pettibone, 1976 (habitat flag source)
Bathyedithia Pettibone, 1976 (extant flag source)
Bathyedithia Pettibone, 1976 (basis of record)
Bathyedithia Pettibone, 1976 (current name source)
Bathyhololepidella Buzhinskaya, 1992 (extant flag source)
Bathyhololepidella Buzhinskaya, 1992 (current name source)
Bathyhololepidella Buzhinskaya, 1992 (basis of record)
Bathyhololepidella Buzhinskaya, 1992 (habitat flag source)
Bathykermadeca Pettibone, 1976 (current name source)
Bathykermadeca Pettibone, 1976 (extant flag source)
Bathykermadeca Pettibone, 1976 (basis of record)
Bathykermadeca Pettibone, 1976 (habitat flag source)
Bathylevensteinia Pettibone, 1976 accepted as Bathylevensteina Pettibone, 1976 (extant flag source)
Bathylevensteinia Pettibone, 1976 accepted as Bathylevensteina Pettibone, 1976 (habitat flag source)
Bathymacella Pettibone, 1976 (current name source)
Bathymacella Pettibone, 1976 (extant flag source)
Bathymacella Pettibone, 1976 (habitat flag source)
Bathymacella Pettibone, 1976 (basis of record)
Bathymariana Levenstein, 1978 (current name source)
Bathymariana Levenstein, 1978 (extant flag source)
Bathymariana Levenstein, 1978 (basis of record)
Bathymariana Levenstein, 1978 (habitat flag source)
Bathymiranda Levenstein, 1981 (extant flag source)
Bathymiranda Levenstein, 1981 (current name source)
Bathymiranda Levenstein, 1981 (basis of record)
Bathymiranda Levenstein, 1981 (habitat flag source)
Bathynoe Ditlevsen, 1917 (extant flag source)
Bathynoe Ditlevsen, 1917 (habitat flag source)
Bathypolaria Levenstein, 1981 (habitat flag source)
Bathypolaria Levenstein, 1981 (basis of record)
Bathypolaria Levenstein, 1981 (extant flag source)
Bathypolaria Levenstein, 1981 (current name source)
Bathysabellaria Lechapt & Gruet, 1993 (habitat flag source)
Bathysabellaria Lechapt & Gruet, 1993 (extant flag source)
Bathyvitiazia Pettibone, 1976 (basis of record)
Bathyvitiazia Pettibone, 1976 (habitat flag source)
Bathyvitiazia Pettibone, 1976 (extant flag source)
Bathyvitiazia Pettibone, 1976 (current name source)
Bayerpolynoe Pettibone, 1991 (current name source)