Amphilepis Ljungman, 1867 (additional source)
Amphilepis norvegica (Ljungman, 1865) (additional source)
Amphiocnida Verrill, 1899 accepted as Ophiocentrus Ljungman, 1867 (additional source)
Amphiocnida brachiata (Montagu, 1804) accepted as Acrocnida brachiata (Montagu, 1804) (additional source)
Amphipholis Ljungman, 1866 (additional source)
Amphipholis januarii Ljungman, 1866 (basis of record)
Amphipholis squamata (Delle Chiaje, 1828) (additional source)
Amphipholis torelli Ljungman, 1872 (additional source)
Amphiura (Acrocnida) accepted as Acrocnida Gislén, 1926 (additional source)
Amphiura (Acrocnida) brachiata (Montagu, 1804) accepted as Acrocnida brachiata (Montagu, 1804) (additional source)
Amphiura (Ophiopeltis) securigera (Düben & Koren, 1846) (additional source)
Amphiura borealis (G.O. Sars, 1872) (additional source)
Amphiura chiajei Forbes, 1843 (additional source)
Amphiura denticulata Koehler, 1896 accepted as Amphiura fragilis Verrill, 1885 (additional source)
Amphiura elegans (Leach, 1815) accepted as Amphipholis squamata (Delle Chiaje, 1828) (additional source)
Amphiura filiformis (O.F. Müller, 1776) (additional source)
Amphiura fragilis Verrill, 1885 (additional source)
Amphiura griegi Mortensen, 1920 (additional source)
Amphiura incana Lyman, 1879 represented as Amphiura (Amphiura) incana Lyman, 1879 (additional source)
Amphiura norvegica Ljungman, 1865 accepted as Amphilepis norvegica (Ljungman, 1865) (additional source)
Amphiura sundevalli (Müller & Troschel, 1842) (additional source)
Asterias brachiata Montagu, 1804 accepted as Acrocnida brachiata (Montagu, 1804) (additional source)
Asterias nigra Abildgaard in O.F. Müller, 1789 accepted as Ophiocomina nigra (Abildgaard in O.F. Müller, 1789) (additional source)
Asterias ophiura Linnaeus, 1758 accepted as Ophiura ophiura (Linnaeus, 1758) (additional source)
Asterias pentaphylla Pennant, 1777 accepted as Ophiothrix fragilis (Abildgaard in O.F. Müller, 1789) (additional source)
Asteronyx Müller & Troschel, 1842 (additional source)
Asteronyx loveni Müller & Troschel, 1842 (additional source)
Axiognathus squamata (Delle Chiaje, 1829) accepted as Amphipholis squamata (Delle Chiaje, 1828) (additional source)
Gorgonocephalus Leach, 1815 (additional source)
Gorgonocephalus agassizi (Stimpson, 1853) accepted as Gorgonocephalus arcticus Leach, 1819 (basis of record)
Gorgonocephalus agassizi (Stimpson, 1853) accepted as Gorgonocephalus arcticus Leach, 1819 (source of synonymy)
Gorgonocephalus arcticus Leach, 1819 (additional source)
Gorgonocephalus caputmedusae (Linnaeus, 1758) (additional source)
Gorgonocephalus eucnemis (Müller & Troschel, 1842) (additional source)
Gorgonocephalus lamarckii (Müller & Troschel, 1842) (additional source)
Gorgonocephalus linckii (Müller & Troschel, 1842) accepted as Gorgonocephalus caputmedusae (Linnaeus, 1758) (basis of record)
Gorgonocephalus linckii (Müller & Troschel, 1842) accepted as Gorgonocephalus caputmedusae (Linnaeus, 1758) (source of synonymy)
Gorgonocephalus malmgreni (Danielssen & Koren, 1877) accepted as Gorgonocephalus eucnemis (Müller & Troschel, 1842) (basis of record)
Gorgonocephalus malmgreni (Danielssen & Koren, 1877) accepted as Gorgonocephalus eucnemis (Müller & Troschel, 1842) (source of synonymy)
Ophiacantha Müller & Troschel, 1842 (additional source)
Ophiacantha abyssicola G.O. Sars, 1872 (additional source)
Ophiacantha anomala G.O. Sars, 1872 accepted as Ophiosabine anomala (G.O. Sars, 1872) (additional source)
Ophiacantha bidentata (Bruzelius, 1805) (additional source)
Ophiacantha danae Mortensen, 1933 accepted as Ophiocomina nigra (Abildgaard in O.F. Müller, 1789) (additional source)
Ophiacantha laevipellis Lyman, 1883 accepted as Ophiomitrella laevipellis (Lyman, 1883) (basis of record)
Ophiacantha laevipellis Lyman, 1883 accepted as Ophiomitrella laevipellis (Lyman, 1883) (source of synonymy)
Ophiacantha spectabilis G.O. Sars, 1872 accepted as Ophiotreta spectabilis (G.O. Sars, 1872) (additional source)
Ophiacantha spinulosa Müller & Troschel, 1842 accepted as Ophiacantha bidentata (Bruzelius, 1805) (additional source)
Ophiactis Lütken, 1856 (additional source)
Ophiactis abyssicola (M. Sars, 1861) (additional source)
Ophiactis balli (W. Thompson, 1840) (additional source)
Ophiactis clavigera Ljungman, 1865 accepted as Ophiomitrella clavigera (Ljungman, 1865) accepted as Ophiosemnotes clavigera (Ljungman, 1865) (additional source)
Ophiactis krebsii Lütken, 1856 accepted as Ophiactis savignyi (Müller & Troschel, 1842) (additional source)
Ophiactis nidarosiensis Mortensen, 1920 (additional source)
Ophiaregma G.O. Sars, 1872 accepted as Ophiopus Ljungman, 1867 (additional source)
Ophiaregma abyssorum G.O. Sars, 1873 accepted as Ophiopus arcticus Ljungman, 1867 (additional source)
Ophiobyrsa Lyman, 1878 (additional source)
Ophiobyrsa hystricis Lyman, 1883 accepted as Ophiophrixus spinosus (Storm, 1881) (additional source)
Ophiobyrsella Verrill, 1899 (additional source)
Ophiobyrsella hystricis (Lyman, 1883) accepted as Ophiophrixus spinosus (Storm, 1881) (additional source)
Ophiocoma punctata Koehler, 1930 accepted as Clarkcoma pulchra (H.L. Clark, 1928) (additional source)
Ophiocomina Koehler in Mortensen, 1920 (additional source)
Ophiocomina nigra (Abildgaard in O.F. Müller, 1789) (additional source)
Ophiocten Lütken, 1855 (additional source)
Ophiocten affinis (Lütken, 1858) (additional source)
Ophiocten gracilis (G.O. Sars, 1872) (additional source)
Ophiocten kroeyeri Lütken, 1855 accepted as Ophiocten sericeum (Forbes, 1852) (additional source)
Ophiocten sericeum (Forbes, 1852) (additional source)
Ophioglypha Lyman, 1860 accepted as Ophiura Lamarck, 1801 (additional source)
Ophioglypha gracilis G.O. Sars, 1872 accepted as Ophiocten gracilis (G.O. Sars, 1872) (additional source)
Ophiolepis scolopendrica Müller & Troschel, 1842 accepted as Ophiopholis aculeata (Linnaeus, 1767) (additional source)
Ophiomitrella Verrill, 1899 (additional source)
Ophiomitrella clavigera (Ljungman, 1865) accepted as Ophiosemnotes clavigera (Ljungman, 1865) (additional source)
Ophiomitrella laevipellis (Lyman, 1883) (basis of record)
Ophiomusium Lyman, 1869 (additional source)
Ophiomusium eburneum Lyman, 1869 (basis of record)
Ophiomusium lymani Wyville-Thomson, 1873 accepted as Ophiomusa lymani (Wyville Thomson, 1873) (additional source)
Ophiopeltis Düben & Koren, 1846 accepted as Amphiura Forbes, 1843 (additional source)
Ophiopholis Müller & Troschel, 1842 (additional source)
Ophiopholis aculeata (Linnaeus, 1767) (additional source)
Ophiophrixus H.L. Clark, 1911 (additional source)
Ophiophrixus acanthinus H.L. Clark, 1911 (basis of record)
Ophiophrixus spinosus (Storm, 1881) (additional source)
Ophiopleura Danielssen & Koren, 1877 (additional source)
Ophiopleura borealis Danielssen & Koren, 1877 (additional source)
Ophiopsila Forbes, 1843 (additional source)
Ophiopsila annulosa (M. Sars, 1859) (additional source)
Ophiopsila aranea Forbes, 1843 (additional source)
Ophiopus Ljungman, 1867 (additional source)
Ophiopus arcticus Ljungman, 1867 (additional source)
Ophioscolex Müller & Troschel, 1842 (additional source)
Ophioscolex (Ophiolycus) purpureus Düben & Koren, 1845 accepted as Ophiolycus purpureus (Düben & Koren, 1845) (additional source)
Ophioscolex glacialis Müller & Troschel, 1842 (additional source)
Ophiothrix fragilis (Abildgaard in O.F. Müller, 1789) (additional source)
Ophiothrix luetkeni Wyville Thomson, 1873 (additional source)
Ophiura Lamarck, 1801 (additional source)
Ophiura (Dictenophiura) carnea Lütken, 1858 (additional source)
Ophiura affinis Lütken, 1858 accepted as Ophiocten affinis (Lütken, 1858) (additional source)
Ophiura albida Forbes, 1839 (additional source)
Ophiura ophiura (Linnaeus, 1758) (additional source)

 Classification

 for Schizaster canaliferus (Lamarck, 1816)

transferred to genus Ova J. E. Gray as O. Canalisfera according to Mortensen, 1927? [details]

 Distribution

 for Echinocardium cordatum (Pennant, 1777)

Cosmopolitan (World Oceans) [details]