• Ophiacantha Müller & Troschel, 1842
• Ophiacantha (Ophiectodia) Verrill, 1899 accepted as Ophiacantha Müller & Troschel, 1842
• Ophiacantha (Ophiectodia) pectinula Verrill, 1899 accepted as Ophiacantha echinulata Lyman, 1878
• Ophiacantha (Ophioglyphoida) Chapman, 1934 †
• Ophiacantha (Ophioglyphoida) fosteri Chapman, 1934 †
• Ophiacantha (Ophiopristis) Verrill, 1899 accepted as Ophiopristis Verrill, 1899
• Ophiacantha (Ophiopristis) permixta Koehler, 1914 accepted as Ophioprium permixta (Koehler, 1914)
• Ophiacantha (Ophiotreta) Verrill, 1899 accepted as Ophiotreta Verrill, 1899
• Ophiacantha (Ophiotreta) affinis Koehler, 1914 accepted as Ophiotreta affinis (Koehler, 1914)
• Ophiacantha (Ophiotreta) danae Mortensen, 1933 accepted as Ophiocomina nigra (Abildgaard in O.F. Müller, 1789)
• Ophiacantha (Ophiotreta) durbanensis Mortensen, 1933 accepted as Ophiotreta durbanensis (Mortensen, 1933)
• Ophiacantha abnormis Lyman, 1879 accepted as Ophiotreta stimulea (Lyman, 1878)
• Ophiacantha abyssa Kyte, 1982
• Ophiacantha abyssicola G.O. Sars, 1872
• Ophiacantha abyssicola otagoensis Fell, 1958 accepted as Ophiacantha otagoensis Fell, 1958
• Ophiacantha abyssicola var. otagoensis Fell, 1958 accepted as Ophiacantha otagoensis Fell, 1958
• Ophiacantha acanthinotata H.L. Clark, 1911
• Ophiacantha aculeata Verrill, 1885
• Ophiacantha acutata Lyman, 1878 accepted as Ophiacantha scutata Lyman, 1878
• Ophiacantha adiaphora H.L. Clark, 1911
• Ophiacantha aenigmatica Matsumoto, 1917
• Ophiacantha alternata A.M. Clark, 1966
• Ophiacantha amelata H.L. Clark, 1938 accepted as Ophiacantha dallasii Duncan, 1879
• Ophiacantha ameleta H.L. Clark, 1938 accepted as Ophiacantha dallasii Duncan, 1879
• Ophiacantha anchilabra H.L. Clark, 1911 accepted as Ophiacantha vorax Koehler, 1897
• Ophiacantha angolensis Koehler, 1923
• Ophiacantha angolensis inermis Mortensen, 1936
• Ophiacantha anomala G.O. Sars, 1872 accepted as Ophiosabine anomala (G.O. Sars, 1872)
• Ophiacantha antarctica (Lyman, 1879) sensu Mortensen, 1936 accepted as Ophiolimna antarctica (Lyman, 1879)
• Ophiacantha antarctica Koehler, 1900
• Ophiacantha antarctica disjuncta Castillo-Alarcon, 1967 accepted as Ophiacantha disjuncta (Koehler, 1911) accepted as Ophiacantha antarctica Koehler, 1900
• Ophiacantha aristata Koehler, 1895 accepted as Ophiosabine aristata (Koehler, 1895)
• Ophiacantha aspera Lyman, 1878
• Ophiacantha aster Nethupul, Stöhr & Zhang, 2022
• Ophiacantha atopostoma H.L. Clark, 1911
• Ophiacantha audax Koehler, 1905 accepted as Ophiacantha duplex Koehler, 1897
• Ophiacantha augusta Koehler, 1904 accepted as Ophiacantha vepratica Lyman, 1878
• Ophiacantha baccata Mortensen, 1933
• Ophiacantha bairdi Lyman, 1883 accepted as Ophiolimna bairdi (Lyman, 1883)
• Ophiacantha barracoutae Koehler, 1923 accepted as Ophiacantha nerthepsila H.L. Clark, 1923
• Ophiacantha bartletti Lyman, 1883 accepted as Ophiotoma bartletti (Lyman, 1883)
• Ophiacantha bathybia H.L. Clark, 1911
• Ophiacantha benigna Koehler, 1922
• Ophiacantha bidentata (Bruzelius, 1805)
• Ophiacantha biformis Hess, 1975 † accepted as Dermocoma biformis (Hess, 1975) †
• Ophiacantha binitorulosa Kristan-Tollmann, Tollmann & Hamedani, 1979 † accepted as Eolaxoporus binitorulosus (Kristan-Tollmann, Tollmann & Hamedani, 1979) †
• Ophiacantha bisquamata Matsumoto, 1915 accepted as Ophiotreta valenciennesi valenciennesi (Lyman, 1879) accepted as Ophiotreta valenciennesi (Lyman, 1879)
• Ophiacantha brachygnatha H.L. Clark, 1928
• Ophiacantha brasiliensis Tommasi & Abreu, 1974
• Ophiacantha brevispina Koehler, 1898
• Ophiacantha cataleimmoida H.L. Clark, 1911 accepted as Ophiophthalmus cataleimmoidus (H.L. Clark, 1911)
• Ophiacantha cervicornis Lyman, 1883 accepted as Ophioprium cervicornis (Lyman, 1883)
• Ophiacantha chelys Wyville Thomson, 1877 accepted as Ophioplinthaca chelys (C.W. Thomson, 1877)
• Ophiacantha clandestina Koehler, 1904 accepted as Ophiacantha duplex Koehler, 1897
• Ophiacantha clavigera Koehler, 1907
• Ophiacantha clypeata Kyte, 1977 accepted as Ophiacantha trachybactra H.L. Clark, 1911
• Ophiacantha composita Koehler, 1897
• Ophiacantha composita sensu Koehler, 1906 accepted as Ophiacantha simulans Koehler, 1895
• Ophiacantha composita sensu Mortensen, 1927 accepted as Ophiacantha simulans Koehler, 1895
• Ophiacantha confusa Koehler, 1905 accepted as Ophiacantha longidens Lyman, 1878
• Ophiacantha congesta Koehler, 1904 accepted as Ophialcaea tuberculosa (Lyman, 1878)
• Ophiacantha constricta Hess, 1966 † accepted as Ophiogaleus constrictus (Hess, 1966) †
• Ophiacantha contigua Lütken & Mortensen, 1899
• Ophiacantha cornuta Lyman, 1878
• Ophiacantha cosmica Lyman, 1878
• Ophiacantha costata Lütken & Mortensen, 1899
• Ophiacantha crassidens Verrill, 1885
• Ophiacantha curima Clark, 1915
• Ophiacantha cuspidata Lyman, 1878 accepted as Ophiosabine cuspidata (Lyman, 1878)
• Ophiacantha cyrena A.H. Clark, 1916
• Ophiacantha dallasi Duncan, 1879 accepted as Ophiacantha dallasii Duncan, 1879
• Ophiacantha dallasii Duncan, 1879
• Ophiacantha danae Mortensen, 1933 accepted as Ophiocomina nigra (Abildgaard in O.F. Müller, 1789)
• Ophiacantha danica Rasmussen, 1952 † accepted as Ophiogaleus danicus (Rasmussen, 1952) †
• Ophiacantha decaactis Belyaev & Litvinova, 1976
• Ophiacantha decipiens Koehler, 1906 accepted as Ophiacantha crassidens Verrill, 1885
• Ophiacantha decora Koehler, 1898 accepted as Ophiacantha indica Ljungman, 1867
• Ophiacantha densa Farran, 1913
• Ophiacantha densispina Mortensen, 1936 accepted as Ophiosabine densispina (Mortensen, 1936)
• Ophiacantha denuispina accepted as Ophiacantha densispina Mortensen, 1936 accepted as Ophiosabine densispina (Mortensen, 1936)
• Ophiacantha deruens Koehler, 1907
• Ophiacantha dilecta Koehler, 1904 accepted as Ophiotreta eximia (Koehler, 1904)
• Ophiacantha diplasia H.L. Clark, 1911
• Ophiacantha diploa H.L. Clark, 1911 accepted as Ophiacantha duplex Koehler, 1897
• Ophiacantha discoidea Lyman, 1879 accepted as Ophiacantha indica Ljungman, 1867
• Ophiacantha disjuncta (Koehler, 1911) accepted as Ophiacantha antarctica Koehler, 1900
• Ophiacantha dissidens Koehler, 1905 accepted as Ophiopristis dissidens (Koehler, 1905)
• Ophiacantha dorecki Hess, 1962 † accepted as Ophiogaleus dorecki (Hess, 1962) †
• Ophiacantha drygalskii (Hertz, 1927) accepted as Ophiocamax drygalskii Hertz, 1927
• Ophiacantha dumosa A.H. Clark, 1949 accepted as Ophiacantha longidens Lyman, 1878
• Ophiacantha duplex Koehler, 1897
• Ophiacantha durbanensis Mortensen, 1933 accepted as Ophiotreta durbanensis (Mortensen, 1933)
• Ophiacantha echinulata Lyman, 1878
• Ophiacantha enneactis H.L. Clark, 1911
• Ophiacantha enopla Verrill, 1885
• Ophiacantha enopla enopla Verrill, 1885 accepted as Ophiacantha enopla Verrill, 1885
• Ophiacantha enopla veterna Koehler, 1907 accepted as Ophiacantha veterna Koehler, 1907
• Ophiacantha ensifera (Verrill, 1899) accepted as Ophiopristis ensifera Verrill, 1899
• Ophiacantha euphylactea H.L. Clark, 1911 accepted as Ophientrema euphylactea (H.L. Clark, 1911)
• Ophiacantha eurypoma H.L. Clark, 1911