1. Species Ophiomusium eburneum Lyman, 1869
2. Species Ophiomusium acuferum Lyman, 1875 accepted as Ophiomusa acufera (Lyman, 1875)
3. Species Ophiomusium africanum Koehler, 1909 accepted as Ophiomusa africana (Koehler, 1909)
4. Species Ophiomusium alecto A.H. Clark, 1936 accepted as Ophiomusa alecto (A.H. Clark, 1936)
5. Species Ophiomusium altum Koehler, 1904 accepted as Ophiomusa alta (Koehler, 1904)
6. Species Ophiomusium anaelisae Tommasi & Abreu, 1974 accepted as Ophiomusa anaelisae (Tommasi & Abreu, 1974)
7. Species Ophiomusium anisacanthum H.L. Clark, 1928 accepted as Ophiomusa anisacantha (H.L. Clark, 1928)
8. Species Ophiomusium aporum H.L. Clark, 1928 accepted as Ophiomusium australe H.L. Clark, 1928 accepted as Ophiomusa australe (H.L. Clark, 1928) (synonym)
9. Species Ophiomusium archaster Wyville Thomson in Lyman, 1878 accepted as Ophiosphalma archaster (Wyville Thomson in Lyman, 1878)
10. Species Ophiomusium armatum Koehler, 1922 accepted as Ophiosphalma armatum (Koehler, 1922) (trasnferred to Ophiosphalma by Baker (2016))
11. Species Ophiomusium armigerum Lyman, 1878 accepted as Ophiosphalma armigerum (Lyman, 1878) (synonym)
12. Species Ophiomusium asperum Koehler, 1930 accepted as Ophiomusa aspera (Koehler, 1930)
13. Species Ophiomusium atlanticum Hertz, 1927 accepted as Ophiomusium fimbriatum atlanticum Hertz, 1927 accepted as Ophiosphalma atlanticum (Hertz, 1927)
14. Species Ophiomusium australe H.L. Clark, 1928 accepted as Ophiomusa australe (H.L. Clark, 1928)
15. Species Ophiomusium binghami Boone, 1928 accepted as Ophiomusa binghami (Boone, 1928)
16. Species Ophiomusium biporicum Castillo-Alárcon, 1968 accepted as Ophiomusa biporica (Castillo-Alárcon, 1968)
17. Species Ophiomusium breve H.L. Clark, 1939 accepted as Ophiomusa breve (H.L. Clark, 1939)
18. Species Ophiomusium canaliculatum H.L. Clark, 1917 accepted as Ophiomusa canaliculata (H.L. Clark, 1917)
19. Species Ophiomusium cancellatum Lyman, 1878 accepted as Ophiosphalma cancellatum (Lyman, 1878) (transferred by Guille & Vadon (1986))
20. Species Ophiomusium congense Hertz, 1927 accepted as Ophiosphalma armigerum (Lyman, 1878)
21. Species Ophiomusium constrictum Mortensen, 1936 accepted as Ophiomusa constricta (Mortensen, 1936)
22. Species Ophiomusium corticosum Lyman, 1878 accepted as Ophiosphalma corticosum (Lyman, 1878) (transferred to Ophiosphalma)
23. Species Ophiomusium diomedeae Lütken & Mortensen, 1899 accepted as Ophiosphalma diomedeae (Lütken & Mortensen, 1899)
24. Species Ophiomusium elegans Koehler, 1897 accepted as Ophiosphalma elegans (Koehler, 1897) (transferred to Ophiosphalma by Guille & Vadon (1981))
25. Species Ophiomusium elii A.H. Clark, 1949 accepted as Ophiosphalma elii (A.H. Clark, 1949) (transferred to Ophiosphalma)
26. Species Ophiomusium facetum Koehler, 1922 accepted as Ophiomusa faceta (Koehler, 1922)
27. Species Ophiomusium facundum Koehler, 1922 accepted as Ophiomusa facunda (Koehler, 1922)
28. Species Ophiomusium fallax Koehler, 1904 accepted as Ophiomusa fallax (Koehler, 1904)
29. Species Ophiomusium familiare Koehler, 1897 accepted as Ophiosphalma familiare (Koehler, 1897) (transferred to Ophiosphalma)
30. Species Ophiomusium fimbriatum Koehler, 1922 accepted as Ophiosphalma fimbriatum (Koehler, 1922) accepted as Ophiosphalma glabrum (Lütken & Mortensen, 1899) (transferred by Vadon & Guille 1984 )
31. Species Ophiomusium flabellum Lyman, 1878 accepted as Ophiomisidium flabellum (Lyman, 1878)
32. Species Ophiomusium glabrum Lütken & Mortensen, 1899 accepted as Ophiosphalma glabrum (Lütken & Mortensen, 1899) (transferred to Ophiosphalma)
33. Species Ophiomusium granosum Lyman, 1878 accepted as Ophiomusa granosa (Lyman, 1878)
34. Species Ophiomusium impotens Koehler, 1922 accepted as Ophiosphalma impotens (Koehler, 1922) (transferred to Ophiosphalma)
35. Species Ophiomusium impurum Koehler, 1904 accepted as Ophiomusium luetkeni Lyman, 1878 accepted as Ophiomusa luetkeni (Lyman, 1878) (synonymized by Stöhr (2011))
36. Species Ophiomusium incertum Koehler, 1930 accepted as Ophiomusa incerta (Koehler, 1930)
37. Species Ophiomusium jolliense McClendon, 1909 accepted as Ophiosphalma jolliense (McClendon, 1909) (synonym)
38. Species Ophiomusium jolliensis McClendon, 1909 accepted as Ophiosphalma jolliense (McClendon, 1909) (synonym)
39. Species Ophiomusium kimblae Baker, 1979 accepted as Ophiomusa kimblae (Baker, 1979)
40. Species Ophiomusium laqueatum Lyman, 1878 accepted as Ophiosphalma laqueatum (Lyman, 1878)
41. Species Ophiomusium leptobrachium H.L. Clark, 1941 accepted as Ophiomusa leptobrachia (H.L. Clark, 1941)
42. Species Ophiomusium ligatum Koehler, 1922 accepted as Ophiomusa ligata (Koehler, 1922)
43. Species Ophiomusium longispinum Koehler, 1930 accepted as Ophiomusa longispina (Koehler, 1930)
44. Species Ophiomusium luetkeni Lyman, 1878 accepted as Ophiomusa luetkeni (Lyman, 1878)
45. Species Ophiomusium lumare Lyman, 1878 accepted as Ophiomusium lunare Lyman, 1878 accepted as Ophiomusa lunare (Lyman, 1878) (misspelling)
46. Species Ophiomusium lunare Lyman, 1878 accepted as Ophiomusa lunare (Lyman, 1878)
47. Species Ophiomusium lütkeni Lyman, 1878 accepted as Ophiomusium luetkeni Lyman, 1878 accepted as Ophiomusa luetkeni (Lyman, 1878)
48. Species Ophiomusium lymani Wyville-Thomson, 1873 accepted as Ophiomusa lymani (Wyville Thomson, 1873) (type species of Ophiomusa, reinstated by (O'Hara et al. 2018))
49. Species Ophiomusium medium Hertz, 1927 accepted as Ophiomusium fimbriatum medium Hertz, 1927 accepted as Ophiomusa fimbriata media Hertz, 1927
50. Species Ophiomusium microporum H.L. Clark, 1941 accepted as Ophiomusa micropora (H.L. Clark, 1941)
51. Species Ophiomusium mirandum Koehler, 1930 accepted as Ophiomusa miranda (Koehler, 1930)
52. Species Ophiomusium moniliforme H.L. Clark, 1941 accepted as Ophiomusa moniliforme (H.L. Clark, 1941)
53. Species Ophiomusium monoplax H.L. Clark, 1915 accepted as Ophiosphalma monoplax (H.L. Clark, 1915) (synonym)
54. Species Ophiomusium morio Koehler, 1922 accepted as Ophiomusa morio (Koehler, 1922)
55. Species Ophiomusium multispinum H.L. Clark, 1911 accepted as Ophiosphalma glabrum (Lütken & Mortensen, 1899) (synonymized by H.L. Clark (1913), then transferred to Ophiosphalma by Baker (2016))
56. Species Ophiomusium muta Hertz, 1927 accepted as Ophiomusa facunda muta Hertz, 1927 accepted as Ophiomusium facundum mutum Hertz, 1927 accepted as Ophiomusium mutum (Hertz, 1927) accepted as Ophiomusa muta (Hertz, 1927)
57. Species Ophiomusium mutum (Hertz, 1927) accepted as Ophiomusa muta (Hertz, 1927)
58. Species Ophiomusium nitidum H.L. Clark, 1939 accepted as Ophiosphalma nitidum (H.L. Clark, 1939)
59. Species Ophiomusium oligoplacum H. L. Clark, 1915 accepted as Ophiomusa oligoplaca (H. L. Clark, 1915)
60. Species Ophiomusium planum Lyman, 1878 accepted as Ophiosphalma armigerum (Lyman, 1878) (synonym)
61. Species Ophiomusium properum Koehler, 1904 accepted as Ophiosphalma properum (Koehler, 1904)
62. Species Ophiomusium pulchellum Thomson, 1877 accepted as Ophiomisidium pulchellum (Wyville Thomson, 1877) (synonym)
63. Species Ophiomusium regulare A.H. Clark, 1936 accepted as Ophiosphalma regulare (A.H. Clark, 1936) (transferred to Ophiosphalma)
64. Species Ophiomusium relictum Koehler, 1904 accepted as Ophiomusa relicta (Koehler, 1904)
65. Species Ophiomusium rosaceum A.H. Clark, 1936 accepted as Ophiomusa rosacea (A.H. Clark, 1936)
66. Species Ophiomusium rugosum Koehler, 1914 accepted as Ophiomusa rugosa (Koehler, 1914)
67. Species Ophiomusium sanctum Koehler, 1904 accepted as Ophiomusium simplex Lyman, 1878 accepted as Ophiomusa simplex (Lyman, 1878)
68. Species Ophiomusium scalare Lyman, 1878 accepted as Ophiomusa scalare (Lyman, 1878)
69. Species Ophiomusium sculptum Verrill, 1899 accepted as Ophiomusium acuferum Lyman, 1875 accepted as Ophiomusa acufera (Lyman, 1875)
70. Species Ophiomusium serratum Lyman, 1878 accepted as Ophiosphalma serratum (Lyman, 1878)
71. Species Ophiomusium simplex Lyman, 1878 accepted as Ophiomusa simplex (Lyman, 1878)
72. Species Ophiomusium solum Hertz, 1927 accepted as Ophiomusium fimbriatum solum Hertz, 1927
73. Species Ophiomusium spinigerum Mortensen, 1933 accepted as Ophiosphalma spinigerum (Mortensen, 1933) (transferred to Ophiosphalma)
74. Species Ophiomusium spinulosum Koehler, 1922 accepted as Ophiosphalma spinulosum (Koehler, 1922) (transferred to Ophiosphalma)
75. Species Ophiomusium stellatum Verrill, 1899 accepted as Ophiomusa stellata (Verrill, 1899)
76. Species Ophiomusium testudo Lyman, 1875 accepted as Ophiomusa testudo (Lyman, 1875)
77. Species Ophiomusium tripassalotum H.L. Clark, 1917 accepted as Ophiomusa tripassalota (H.L. Clark, 1917)
78. Species Ophiomusium trychnum H.L. Clark, 1911 accepted as Ophiomusa trychna (H.L. Clark, 1911)
79. Species Ophiomusium ultima (Hertz, 1927) accepted as Ophiomusa ultima Hertz, 1927
80. Species Ophiomusium valdiviae Hertz, 1927 accepted as Ophiomusa valdiviae (Hertz, 1927)
81. Species Ophiomusium validum Ljungman, 1872 accepted as Ophiomusa valida (Ljungman, 1872)
82. Species Ophiomusium variabile Lütken & Mortensen, 1899 accepted as Ophiosphalma variabile (Lütken & Mortensen, 1899) (transferred to Ophiosphalma)
83. Species Ophiomusium zela A.H. Clark, 1949 accepted as Ophiomusa zela (A.H. Clark, 1949)

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