Abyssura Belyaev & Litvinova, 1976 (taxonomy source)
Amphilepidida incertae sedis (taxonomy source)
Amphilimnidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Anthophiura H.L. Clark, 1911 (taxonomy source)
Asteroschematidae Verrill, 1899 accepted as Euryalidae Gray, 1840 (additional source)
Astrocharinae Okanishi et al., 2011 accepted as Euryalidae Gray, 1840 (taxonomy source)
Astrocharis Koehler, 1904 (taxonomy source)
Bathylepta Belyaev & Litvinova, 1972 (taxonomy source)
Euryalida (taxonomy source)
Euryalidae Gray, 1840 (redescription)
Glaciacantha Fell, 1961 (status source)
Glaciacantha dubium (Koehler, 1901) (status source)
Gorgonocephalidae Ljungman, 1867 (redescription)
Hemieuryalidae Verrill, 1899 (redescription)
Metophiurida (taxonomy source)
Myophiuroidea accepted as Myophiuroida (taxonomy source)
Ophiacanthella Verrill, 1899 (taxonomy source)
Ophiacanthidae Ljungman, 1867 (taxonomy source)
Ophiambix Lyman, 1880 (taxonomy source)
Ophiarachna Müller & Troschel, 1842 (taxonomy source)
Ophienigma Stöhr & Segonzac, 2005 (taxonomy source)
Ophiernidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Ophiocamacidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Ophiochytra Lyman, 1880 (taxonomy source)
Ophiocirce Koehler, 1904 accepted as Ophioleuce Koehler, 1904 (taxonomy source)
Ophiocoma L. Agassiz, 1836 (taxonomy source)
Ophiocomella A.H. Clark, 1939 (taxonomy source)
Ophioconis Lütken, 1869 (taxonomy source)
Ophiocopa Lyman, 1883 (taxonomy source)
Ophiocreas Lyman, 1879 (taxonomy source)
Ophiocten dubium Koehler, 1901 accepted as Glaciacantha dubium (Koehler, 1901) (status source)
Ophiocymbium Lyman, 1880 (taxonomy source)
Ophiodaces Koehler, 1922 (taxonomy source)
Ophiodictys Koehler, 1922 (taxonomy source)
Ophiogeron Lyman, 1878 (taxonomy source)
Ophiolamina Stöhr & Segonzac, 2006 (taxonomy source)
Ophioleptoplax H.L. Clark, 1911 (taxonomy source)
Ophioleuce Koehler, 1904 (taxonomy source)
Ophiologimus H.L. Clark, 1911 (taxonomy source)
Ophiolycus Mortensen, 1933 (taxonomy source)
Ophiomaria A.H. Clark, 1916 (taxonomy source)
Ophiomastix Müller & Troschel, 1842 (taxonomy source)
Ophiomastus Lyman, 1878 (taxonomy source)
Ophiomedea Koehler, 1906 (taxonomy source)
Ophiomidas Koehler, 1904 (taxonomy source)
Ophiomitra Lyman, 1869 (taxonomy source)
Ophiomusa Hertz, 1927 (status source)
Ophiomusa alta (Koehler, 1904) (taxonomy source)
Ophiomusa australe (H.L. Clark, 1928) (taxonomy source)
Ophiomusa canaliculata (H.L. Clark, 1917) (taxonomy source)
Ophiomusa faceta (Koehler, 1922) (taxonomy source)
Ophiomusa granosa (Lyman, 1878) (taxonomy source)
Ophiomusa leptobrachia (H.L. Clark, 1941) (taxonomy source)
Ophiomusa ligata (Koehler, 1922) (taxonomy source)
Ophiomusa luetkeni (Lyman, 1878) (taxonomy source)
Ophiomusa lunare (Lyman, 1878) (taxonomy source)
Ophiomusa lymani (Wyville Thomson, 1873) (status source)
Ophiomusa oligoplaca (H. L. Clark, 1915) (taxonomy source)
Ophiomusa rosacea (A.H. Clark, 1936) (taxonomy source)
Ophiomusa scalare (Lyman, 1878) (taxonomy source)
Ophiomusa serrata (Lyman, 1878) accepted as Ophiosphalma serratum (Lyman, 1878) (taxonomy source)
Ophiomusa testudo (Lyman, 1875) (taxonomy source)
Ophiomusa tripassalota (H.L. Clark, 1917) (taxonomy source)
Ophiomusa trychna (H.L. Clark, 1911) (taxonomy source)
Ophiomusa valida (Ljungman, 1872) (taxonomy source)
Ophiomusa zela (A.H. Clark, 1949) (taxonomy source)
Ophiomusaidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Ophiomusina (redescription)
Ophiomusium Lyman, 1869 (taxonomy source)
Ophiomusium altum Koehler, 1904 accepted as Ophiomusa alta (Koehler, 1904) (taxonomy source)
Ophiomusium armatum Koehler, 1922 accepted as Ophiosphalma armatum (Koehler, 1922) (taxonomy source)
Ophiomusium australe H.L. Clark, 1928 accepted as Ophiomusa australe (H.L. Clark, 1928) (taxonomy source)
Ophiomusium canaliculatum H.L. Clark, 1917 accepted as Ophiomusa canaliculata (H.L. Clark, 1917) (taxonomy source)
Ophiomusium facetum Koehler, 1922 accepted as Ophiomusa faceta (Koehler, 1922) (taxonomy source)
Ophiomusium facundum Koehler, 1922 accepted as Ophiomusa facunda (Koehler, 1922) (taxonomy source)
Ophiomusium granosum Lyman, 1878 accepted as Ophiomusa granosa (Lyman, 1878) (taxonomy source)
Ophiomusium leptobrachium H.L. Clark, 1941 accepted as Ophiomusa leptobrachia (H.L. Clark, 1941) (taxonomy source)
Ophiomusium ligatum Koehler, 1922 accepted as Ophiomusa ligata (Koehler, 1922) (taxonomy source)
Ophiomusium luetkeni Lyman, 1878 accepted as Ophiomusa luetkeni (Lyman, 1878) (taxonomy source)
Ophiomusium lunare Lyman, 1878 accepted as Ophiomusa lunare (Lyman, 1878) (taxonomy source)
Ophiomusium oligoplacum H. L. Clark, 1915 accepted as Ophiomusa oligoplaca (H. L. Clark, 1915) (taxonomy source)
Ophiomusium relictum Koehler, 1904 accepted as Ophiomusa relicta (Koehler, 1904) (taxonomy source)
Ophiomusium rosaceum A.H. Clark, 1936 accepted as Ophiomusa rosacea (A.H. Clark, 1936) (taxonomy source)
Ophiomusium scalare Lyman, 1878 accepted as Ophiomusa scalare (Lyman, 1878) (taxonomy source)
Ophiomusium serratum Lyman, 1878 accepted as Ophiosphalma serratum (Lyman, 1878) (taxonomy source)
Ophiomusium testudo Lyman, 1875 accepted as Ophiomusa testudo (Lyman, 1875) (taxonomy source)
Ophiomusium tripassalotum H.L. Clark, 1917 accepted as Ophiomusa tripassalota (H.L. Clark, 1917) (taxonomy source)
Ophiomusium trychnum H.L. Clark, 1911 accepted as Ophiomusa trychna (H.L. Clark, 1911) (taxonomy source)
Ophiomusium validum Ljungman, 1872 accepted as Ophiomusa valida (Ljungman, 1872) (taxonomy source)
Ophiomusium zela A.H. Clark, 1949 accepted as Ophiomusa zela (A.H. Clark, 1949) (taxonomy source)
Ophiopallas Koehler, 1904 (taxonomy source)
Ophiopholidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (basis of record)
Ophiopholis Müller & Troschel, 1842 (taxonomy source)
Ophiophrura H.L. Clark, 1911 (taxonomy source)
Ophiophyllum Lyman, 1878 (taxonomy source)
Ophiopristis Verrill, 1899 (taxonomy source)
Ophioprium H.L. Clark, 1915 (taxonomy source)
Ophiopus Ljungman, 1867 (taxonomy source)
Ophiopyren Lyman, 1878 (taxonomy source)
Ophiorupta Martynov, 2010 (taxonomy source)

 Identification

 for Ophiomusa Hertz, 1927

Includes all species formerly in Ophiomusium that have few disc scales, very short genital slits and lateral arm ... [details]

 Taxonomy

 for Euryalida

The superfamilies Gorgoncephalidea and Euryalidea proposed by Okanishi & Fujita (2013) were not supported by O'Hara ... [details]