• Ophiactis Lütken, 1856
• Ophiactis abyssicola (M. Sars, 1861)
• Ophiactis abyssicola cuspidata (Lyman, 1879) accepted as Ophiactis abyssicola (M. Sars, 1861)
• Ophiactis acosmeta H.L. Clark, 1938 accepted as Ophiactis macrolepidota Marktanner-Turneretscher, 1887
• Ophiactis affinis Duncan, 1879
• Ophiactis africana Koehler, 1911 accepted as Ophiactis luetkeni Marktanner-Turneretscher, 1887
• Ophiactis africana capensis Hertz, 1927 accepted as Ophiactis carnea Ljungman, 1867
• Ophiactis algicola H.L. Clark, 1933
• Ophiactis amator Koehler, 1922
• Ophiactis applegatei Martin-Medrano, Thuy & Garcia-Barrera, 2009 †
• Ophiactis arenosa Lütken, 1856 accepted as Ophiactis simplex (LeConte, 1851)
• Ophiactis asperula (Philippi, 1858)
• Ophiactis balli (W. Thompson, 1840)
• Ophiactis brachyaspis H.L. Clark, 1911
• Ophiactis brachygenys H.L. Clark, 1911
• Ophiactis brachyura Döderlein, 1898
• Ophiactis brasiliensis Manso, 1988
• Ophiactis brevis H.L. Clark, 1938
• Ophiactis brocki de Loriol, 1893 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis canescens (Lyman, 1879) accepted as Amphiactis canescens (Lyman, 1879) accepted as Histampica canescens (Lyman, 1879)
• Ophiactis canotia Lyman, 1879
• Ophiactis capensis Hertz, 1927 accepted as Ophiactis carnea Ljungman, 1867
• Ophiactis carnea Ljungman, 1867
• Ophiactis clavigera Ljungman, 1865 accepted as Ophiomitrella clavigera (Ljungman, 1865) accepted as Ophiosemnotes clavigera (Ljungman, 1865)
• Ophiactis conferta Koehler, 1905 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis corallicola Koehler, 1895 accepted as Ophiactis abyssicola (M. Sars, 1861)
• Ophiactis crosnieri Cherbonnier & Guille, 1978
• Ophiactis cuspidata Lyman, 1879 accepted as Ophiactis abyssicola (M. Sars, 1861)
• Ophiactis cyanosticta H.L. Clark, 1918 accepted as Ophiactis muelleri Lütken, 1856
• Ophiactis definita Koehler, 1922 accepted as Ophiactis brachygenys H.L. Clark, 1911
• Ophiactis delagoa J.B. Balinsky, 1957
• Ophiactis delicata H.L. Clark, 1915 accepted as Ophiactis macrolepidota Marktanner-Turneretscher, 1887
• Ophiactis dispar Verrill, 1899 accepted as Ophiactis quinqueradia Ljungman, 1872
• Ophiactis dissidens Koehler, 1904 accepted as Ophiomedea dissidens (Koehler, 1904) accepted as Histampica dissidens (Koehler, 1904)
• Ophiactis duplicata (Lyman, 1875) accepted as Histampica duplicata (Lyman, 1875)
• Ophiactis dyscrita H.L. Clark, 1911
• Ophiactis echinata Koehler, 1898 accepted as Ophiactis abyssicola (M. Sars, 1861)
• Ophiactis elegans (uncertain > nomen dubium)
• Ophiactis flexulosa Lyman, 1879 accepted as Ophiactis flexuosa Lyman, 1879
• Ophiactis flexuosa Lyman, 1879
• Ophiactis fragilis Ljungman, 1866 accepted as Ophiactis kroeyeri Lütken, 1856
• Ophiactis fuscolineata H.L. Clark, 1938
• Ophiactis gymnochora H.L. Clark, 1911
• Ophiactis hemiteles H.L. Clark, 1915
• Ophiactis hexacantha H.L. Clark, 1939
• Ophiactis hirta Lyman, 1879
• Ophiactis humilis Lyman, 1869 accepted as Ophiolebes humilis (Lyman, 1869)
• Ophiactis incisa v. Martens, 1870 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis krebsii Lütken, 1856 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis kroeyeri Lütken, 1856
• Ophiactis kroyeri Lütken, 1856 accepted as Ophiactis kroeyeri Lütken, 1856
• Ophiactis laevis H.L. Clark, 1938 accepted as Ophiactis tricolor H.L. Clark, 1928
• Ophiactis lethe A.H. Clark, 1949
• Ophiactis ljungmani Marktanner-Turneretscher, 1887
• Ophiactis longibrachia H.L. Clark, 1900 accepted as Ophiactis quinqueradia Ljungman, 1872
• Ophiactis longispina (uncertain > nomen dubium)
• Ophiactis loricata Lyman, 1869
• Ophiactis lorioli Koehler, 1897 accepted as Amphiura (Amphiura) lorioli (Koehler, 1897)
• Ophiactis luetkeni Marktanner-Turneretscher, 1887
• Ophiactis luteomaculata H.L. Clark, 1915
• Ophiactis lycidas (A.H. Clark, 1949) accepted as Histampica lycidas (A.H. Clark, 1949)
• Ophiactis lymani Ljungman, 1872
• Ophiactis macrolepidota Marktanner-Turneretscher, 1887
• Ophiactis maculosa von Martens, 1870 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis magellanica Ljungman, 1866 accepted as Ophiactis asperula (Philippi, 1858)
• Ophiactis minor Döderlein, 1910 accepted as Amphipholis squamata (Delle Chiaje, 1828)
• Ophiactis modesta Brock, 1888
• Ophiactis muelleri Lütken, 1856
• Ophiactis muelleri var. quinqueradia Ljungman, 1872 accepted as Ophiactis quinqueradia Ljungman, 1872
• Ophiactis mulleri accepted as Ophiactis muelleri Lütken, 1856
• Ophiactis nama Lyman, 1879
• Ophiactis nidarosiensis Mortensen, 1920
• Ophiactis nigrescens Hutton, 1872 accepted as Ophiocoma schoenleinii Müller & Troschel, 1842
• Ophiactis nomentis Farquhar, 1907 accepted as Ophiactis resiliens Lyman, 1879
• Ophiactis notabilis H.L. Clark, 1939
• Ophiactis novaezelandiae Mortensen, 1924 accepted as Ophiactis profundi novaezelandiae Mortensen, 1924
• Ophiactis oerstedi Lütken, 1856 accepted as Ophiactis simplex (LeConte, 1851)
• Ophiactis parata Koehler, 1904 accepted as Ophiocopa spatula Lyman, 1883
• Ophiactis parva Mortensen, 1926 accepted as Ophiactis macrolepidota Marktanner-Turneretscher, 1887
• Ophiactis patula (Lyman, 1879) accepted as Amphioplus (Unioplus) patulus (Lyman, 1879) accepted as Silax patulus (Lyman, 1879)
• Ophiactis pectorale Lyman, 1880 accepted as Ophiodictys pectorale (Lyman, 1880)
• Ophiactis perplexa Koehler, 1897
• Ophiactis picteti (de Loriol, 1893)
• Ophiactis plana Lyman, 1869
• Ophiactis poa Lyman, 1879 accepted as Ophiactis abyssicola (M. Sars, 1861)
• Ophiactis profundi Lütken & Mortensen, 1899
• Ophiactis profundi novaezelandiae Mortensen, 1924
• Ophiactis profundi var. novaezelandiae Mortensen, 1924 represented as Ophiactis profundi novaezelandiae Mortensen, 1924
• Ophiactis proposita (Koehler, 1922) accepted as Amphiura proposita Koehler, 1922
• Ophiactis pteropoma H.L. Clark, 1911 accepted as Ophiactis profundi Lütken & Mortensen, 1899
• Ophiactis quadrispina H.L. Clark, 1915
• Ophiactis quinqueradia Ljungman, 1872
• Ophiactis reinhardti Lütken, 1859 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis reinhardtii Lütken, 1859 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis resiliens Lyman, 1879
• Ophiactis rubropoda Singletary, 1973
• Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis savignyi var. lutea H.L. Clark, 1938 accepted as Ophiactis savignyi (Müller & Troschel, 1842)
• Ophiactis seminuda Mortensen, 1936
• Ophiactis sexradia (Grube, 1857) accepted as Ophiactis savignyi (Müller & Troschel, 1842)