Aegir Danielssen, 1888 accepted as Halcampoides Danielssen, 1890 (additional source)
Anchiolus agilis Step, 1896 accepted as Anchialina agilis (G.O. Sars, 1877) (source of synonymy)
Callipodium aureum Verrill, 1869 (current name source)
Callipodium aureum Verrill, 1869 (additional source)
Celatembryon Iredale, 1939 accepted as Bothriembryon Pilsbry, 1894 (source of synonymy)
Celatembryon Iredale, 1939 accepted as Bothriembryon Pilsbry, 1894 (verified source for family)
Celatembryon Iredale, 1939 accepted as Bothriembryon Pilsbry, 1894 (habitat flag source)
Cuniculina Leven in Leven & Vaziri Mohaddam, 2004 † accepted as Cuniculinella Skinner & Wilde, 1965 † (source of synonymy)
Discotrypina Astrova, 1959 † (verified source for family)
Elephantulum Carpenter, 1857 accepted as Caecum Fleming, 1813 (source of synonymy)
Fungella von Hagenow, 1851 (verified source for family)
Gabianus scoresbyi (Traill, 1823) accepted as Leucophaeus scoresbii (Traill, 1823) (source of synonymy)
Geotriidae Gill, 1893 (taxonomy source)
Glaciacantha doederleini (Hertz, 1927) (current name source)
Glaciacantha jason Fell, 1961 accepted as Glaciacantha dubium (Koehler, 1901) (source of synonymy)
Hirudo Müller, 1788 accepted as Hirudo Linnaeus, 1758 (status source)
Iranella Leven in Leven & Vaziri Mohaddam, 2004 (status source)
Kimberia Cotton & Woods, 1935 accepted as Turritellopsis G.O. Sars, 1878 (source of synonymy)
Larus scoresbii Traill, 1823 accepted as Leucophaeus scoresbii (Traill, 1823) (source of synonymy)
Monostoma Zeder in Goeze, 1800 (verified source for family)
Monostoma Zeder in Goeze, 1800 (status source)
Neorubra M.S. Calderon, G.H. Boo & S.M. Boo, 2014 (verified source for family)
Ophiocten doederleini Hertz, 1926 accepted as Glaciacantha doederleini (Hertz, 1927) (source of synonymy)
Ophiocten dubium Koehler, 1900 accepted as Glaciacantha dubium (Koehler, 1901) (source of synonymy)
Ophiolipus Lyman, 1878 (verified source for family)
Ophiolypus Lyman, 1878 accepted as Ophiolipus Lyman, 1878 (verified source for family)
Ophiomusa Hertz, 1927 (verified source for family)
Ophiomusa Hertz, 1927 (current name source)
Ophiomusa facunda (Koehler, 1922) (current name source)
Ophiomusa lymani (Wyville-Thomson, 1873) (current name source)
Ophiomusa relicta (Koehler, 1904) (current name source)
Ophiomusa ultima Hertz, 1927 (current name source)
Ophiomusaidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (habitat flag source)
Ophiomusaidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (taxonomy source)
Ophiomusaidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (basis of record)
Ophiomusaidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (current name source)
Ophiomusaidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (extant flag source)
Ophiomusium archaster (Wyville Thomson in Lyman, 1878) (additional source)
Ophiosphalma H.L. Clark, 1941 (verified source for family)
Ophiosphalmidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (current name source)
Ophiosphalmidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (habitat flag source)
Ophiosphalmidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (taxonomy source)
Ophiosphalmidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (basis of record)
Ophiosphalmidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (extant flag source)
Orzeliscidae Schulz, 1963 accepted as Halechiniscidae Thulin, 1928 (source of synonymy)
Orzeliscus du Bois-Reymond Marcus, 1952 (verified source for family)
Paraleeina Leven in Leven & Vaziri Mohaddam, 2004 † (current name source)
Pasithoe Rafinesque, 1815 (status source)
Pasithoe Rafinesque, 1815 (verified source for family)
Pasithoe Rafinesque, 1815 (habitat flag source)
Pinnatoporella Buttler, 1991 † (verified source for family)
Pinnatoporella Buttler, 1991 † (current name source)
Rhytiphorus Meek, 1877 † accepted as Rhytophorus Meek, 1871 † (source of synonymy)
Rhytophorus Meek, 1871 † (verified source for family)
Rhytophorus Meek, 1871 † (current name source)