Abyssura Belyaev & Litvinova, 1976 (taxonomy source)
Amphilepidida incertae sedis (taxonomy source)
Amphilimnidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Anophiura H.L. Clark, 1939 (taxonomy source)
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)
Breviturma Stöhr, Boissin & Hoareau, 2013 (status source)
Breviturma brevipes (Peters, 1851) (new combination reference)
Breviturma dentata (Müller & Troschel, 1842) (new combination reference)
Breviturma doederleini (de Loriol, 1899) (new combination reference)
Breviturma krohi (Stöhr, Boissin & Hoareau, 2013) (new combination reference)
Clarkcoma Devaney, 1970 (taxonomy source)
Clarkcomidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Eirenura Thuy, 2011 † (taxonomy source)
Euryalida (taxonomy source)
Euryalidae Gray, 1840 (redescription)
Glaciacantha Fell, 1961 (status source)
Glaciacantha doederleini (Hertz, 1927) (status source)
Glaciacantha dubium (Koehler, 1901) (status source)
Gorgonocephalidae Ljungman, 1867 (redescription)
Haplophiura Matsumoto, 1915 (taxonomy source)
Hemieuryalidae Verrill, 1899 (redescription)
Metophiurida (taxonomy source)
Microphiura Mortensen, 1910 (taxonomy source)
Myophiuroidea accepted as Myophiuroida (taxonomy source)
Ophiacantha (Ophiopristis) Verrill, 1899 accepted as Ophiopristis Verrill, 1899 (status source)
Ophiacanthella Verrill, 1899 (taxonomy source)
Ophiacanthidae Ljungman, 1867 (taxonomy source)
Ophiambix Lyman, 1880 (taxonomy source)
Ophiarachna Müller & Troschel, 1842 (taxonomy source)
Ophiarachnella Ljungman, 1872 (taxonomy source)
Ophiarthrum Peters, 1851 accepted as Ophiomastix Müller & Troschel, 1842 (taxonomy source)
Ophienigma Stöhr & Segonzac, 2005 (taxonomy source)
Ophiernidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Ophioblenna Lütken, 1859 (taxonomy source)
Ophiobrachion Lyman, 1883 (taxonomy source)
Ophiocamacidae O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018 (original description)
Ophiochaeta Lütken, 1869 (taxonomy source)
Ophiochalcis Koehler, 1930 (taxonomy source)
Ophiochondrella Verrill, 1899 (taxonomy source)
Ophiochrysis Koehler, 1904 (taxonomy source)
Ophiochytra Lyman, 1880 (taxonomy source)
Ophiocirce Koehler, 1904 accepted as Ophioleuce Koehler, 1904 (taxonomy source)
Ophiocircus accepted as Ophioleuce Koehler, 1904 (taxonomy source)
Ophioclastus Murakami, 1943 (taxonomy source)
Ophiocoma L. Agassiz, 1836 (taxonomy source)
Ophiocoma (Breviturma) Stöhr, Boissin & Hoareau, 2013 accepted as Breviturma Stöhr, Boissin & Hoareau, 2013 (status source)
Ophiocoma (Breviturma) dentata Müller & Troschel, 1842 accepted as Breviturma dentata (Müller & Troschel, 1842) (status source)
Ophiocoma (Breviturma) doederleini de Loriol, 1899 accepted as Breviturma doederleini (de Loriol, 1899) (status source)
Ophiocoma (Breviturma) krohi Stöhr, Boissin & Hoareau, 2013 accepted as Breviturma krohi (Stöhr, Boissin & Hoareau, 2013) (status source)
Ophiocoma dentata Müller & Troschel, 1842 accepted as Breviturma dentata (Müller & Troschel, 1842) (status source)
Ophiocoma doederleini de Loriol, 1899 accepted as Breviturma doederleini (de Loriol, 1899) (status source)
Ophiocoma krohi Stöhr, Boissin & Hoareau, 2013 accepted as Breviturma krohi (Stöhr, Boissin & Hoareau, 2013) (new combination reference)
Ophiocomella A.H. Clark, 1939 (taxonomy source)
Ophiocomina Koehler in Mortensen, 1920 (taxonomy source)
Ophioconis Lütken, 1869 (taxonomy source)
Ophiocopa Lyman, 1883 (taxonomy source)
Ophiocreas Lyman, 1879 (taxonomy source)
Ophiocten doederleini Hertz, 1927 accepted as Glaciacantha doederleini (Hertz, 1927) (status source)
Ophiocten dubium Koehler, 1901 accepted as Glaciacantha dubium (Koehler, 1901) (status source)
Ophiocymbium Lyman, 1880 (taxonomy source)
Ophiocypris Koehler, 1930 (taxonomy source)
Ophiodaces Koehler, 1922 (taxonomy source)
Ophiodelos Koehler, 1930 (taxonomy source)
Ophiodictys Koehler, 1922 (taxonomy source)
Ophiodyscrita H.L. Clark, 1938 (taxonomy source)
Ophiogema Koehler, 1922 (taxonomy source)
Ophiogeron Lyman, 1878 (taxonomy source)
Ophiohyalus Matsumoto, 1915 (taxonomy source)
Ophiohymen H.L. Clark, 1911 (taxonomy source)
Ophiolamina Stöhr & Segonzac, 2006 (taxonomy source)
Ophiolebella Mortensen, 1936 (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)
Ophiomora Koehler, 1907 (taxonomy source)
Ophiomusa Hertz, 1927 (status source)
Ophiomusa acufera (Lyman, 1875) (taxonomy source)
Ophiomusa africana (Koehler, 1909) (taxonomy source)
Ophiomusa alecto (A.H. Clark, 1936) (taxonomy source)
Ophiomusa alta (Koehler, 1904) (taxonomy source)
Ophiomusa anaelisae (Tommasi & Abreu, 1974) (taxonomy source)
Ophiomusa anisacantha (H.L. Clark, 1928) (taxonomy source)
Ophiomusa aspera (Koehler, 1930) (taxonomy source)
Ophiomusa australe (H.L. Clark, 1928) (taxonomy source)
Ophiomusa binghami (Boone, 1928) (taxonomy source)
Ophiomusa biporica (Castillo-Alárcon, 1968) (taxonomy source)
Ophiomusa breve (H.L. Clark, 1939) (taxonomy source)
Ophiomusa canaliculata (H.L. Clark, 1917) (taxonomy source)
Ophiomusa constricta (Mortensen, 1936) (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]