1. Species Acanthephyra acanthitelsonis Spence Bate, 1888
2. Species Acanthephyra acutifrons Spence Bate, 1888
3. Species Acanthephyra armata A. Milne-Edwards, 1881
4. Species Acanthephyra brevicarinata Hanamura, 1984
5. Species Acanthephyra brevirostris Smith, 1885
6. Species Acanthephyra carinata Spence Bate, 1888
7. Species Acanthephyra chacei Krygier & Forss, 1981
8. Species Acanthephyra cucullata Faxon, 1893
9. Species Acanthephyra curtirostris Wood-Mason in Wood-Mason & Alcock, 1891
10. Species Acanthephyra eximia Smith, 1884
11. Species Acanthephyra faxoni Calman, 1939
12. Species Acanthephyra fimbriata Alcock & Anderson, 1894
13. Species Acanthephyra heatheri Vereshchaka, Kulagin & Lunina, 2022
14. Species Acanthephyra indica Balss, 1925
15. Species Acanthephyra kingsleyi Spence Bate, 1888
16. Species Acanthephyra media Spence Bate, 1888
17. Species Acanthephyra pelagica (Risso, 1816)
18. Species Acanthephyra prionota Foxton, 1971
19. Species Acanthephyra purpurea A. Milne-Edwards, 1881
20. Species Acanthephyra quadrispinosa Kemp, 1939
21. Species Acanthephyra rostrata (Spence Bate, 1888)
22. Species Acanthephyra sanguinea Wood-Mason in Wood-Mason & Alcock, 1892
23. Species Acanthephyra sibogae De Man, 1916
24. Species Acanthephyra sica Spence Bate, 1888
25. Species Acanthephyra smithi Kemp, 1939
26. Species Acanthephyra stylorostratis (Spence Bate, 1888)
27. Species Acanthephyra tenuipes (Spence Bate, 1888)
28. Species Acanthephyra trispinosa Kemp, 1939
29. Subgenus Acanthephyra (Meningodora) Smith, 1882 accepted as Meningodora Smith, 1882 (superseded status)
    1. Species Acanthephyra (Meningodora) sibogae De Man, 1916 accepted as Acanthephyra sibogae De Man, 1916 (unaccepted > superseded combination)
30. Species Acanthephyra abyssorum Filhol, 1885 accepted as Acanthephyra purpurea A. Milne-Edwards, 1881 (unaccepted > junior subjective synonym)
31. Species Acanthephyra affinis Faxon, 1896 accepted as Systellaspis pellucida (Filhol, 1884) (unaccepted > junior subjective synonym)
32. Species Acanthephyra agassizzi Smith, 1884 accepted as Acanthephyra pelagica (Risso, 1816) (unaccepted > junior subjective synonym)
33. Species Acanthephyra angusta Spence Bate, 1888 accepted as Acanthephyra eximia Smith, 1884 (unaccepted > junior subjective synonym)
34. Species Acanthephyra anomala Boone, 1927 accepted as Janicella spinicauda (A. Milne-Edwards, 1883) (unaccepted > junior subjective synonym)
35. Species Acanthephyra antarctica Bage, 1938 accepted as Nematocarcinus lanceopes Spence Bate, 1888 (unaccepted > junior subjective synonym)
36. Species Acanthephyra approxima Spence Bate, 1888 accepted as Acanthephyra carinata Spence Bate, 1888 (unaccepted > junior subjective synonym)
37. Species Acanthephyra batei Faxon, 1895 accepted as Meningodora vesca (Smith, 1886) (unaccepted > junior subjective synonym)
38. Species Acanthephyra batei Stebbing, 1905 accepted as Acanthephyra quadrispinosa Kemp, 1939 (unaccepted > junior subjective synonym)
39. Species Acanthephyra brachytelsonis Spence Bate, 1888 accepted as Acanthephyra eximia Smith, 1884 (unaccepted > junior subjective synonym)
40. Species Acanthephyra braueri Balss, 1914 accepted as Systellaspis braueri (Balss, 1914) (unaccepted > superseded combination)
41. Species Acanthephyra brevirostris Spence Bate, 1888 accepted as Meningodora vesca (Smith, 1886) (unaccepted > junior subjective synonym)
42. Species Acanthephyra cristata Faxon, 1893 accepted as Systellaspis cristata (Faxon, 1893) (unaccepted > superseded combination)
43. Species Acanthephyra debilis A. Milne-Edwards, 1881 accepted as Systellaspis debilis (A. Milne-Edwards, 1881) (unaccepted > superseded combination)
44. Species Acanthephyra edwardsii Spence Bate, 1888 accepted as Acanthephyra eximia Smith, 1884 (unaccepted > junior subjective synonym)
45. Species Acanthephyra ensis A. Milne-Edwards, 1881 accepted as Plesionika ensis (A. Milne-Edwards, 1881) (unaccepted > superseded combination)
46. Species Acanthephyra eximea Smith, 1884 accepted as Acanthephyra eximia Smith, 1884 (unaccepted > misspelling)
47. Species Acanthephyra frontieri Crosnier, 1988 accepted as Acanthephyra eximia Smith, 1884 (unaccepted > junior subjective synonym)
48. Species Acanthephyra gracilipes Chace, 1940 accepted as Acanthephyra tenuipes (Spence Bate, 1888) (unaccepted > junior subjective synonym)
49. Species Acanthephyra kempii Balss, 1914 accepted as Acanthephyra sanguinea Wood-Mason in Wood-Mason & Alcock, 1892 (unaccepted > junior subjective synonym)
50. Species Acanthephyra longidens Spence Bate, 1888 accepted as Heterogenys microphthalma (Smith, 1885) (unaccepted > junior subjective synonym)
51. Species Acanthephyra microphthalma Smith, 1885 accepted as Heterogenys microphthalma (Smith, 1885) (unaccepted > superseded combination)
52. Species Acanthephyra parvirostris Coutière, 1911 accepted as Meningodora vesca (Smith, 1886) (unaccepted > nomen nudum)
53. Species Acanthephyra pellucida Filhol, 1884 accepted as Systellaspis pellucida (Filhol, 1884) (unaccepted > superseded combination)
54. Species Acanthephyra pleuracantha Coutière, 1914 (unaccepted > nomen nudum)
55. Species Acanthephyra pulchra A. Milne-Edwards, 1890 accepted as Acanthephyra eximia Smith, 1884 (unaccepted > junior subjective synonym)
56. Species Acanthephyra rectirostris Riggio, 1900 accepted as Acanthephyra pelagica (Risso, 1816) (unaccepted > junior subjective synonym)
57. Species Acanthephyra sexspinosa Kemp, 1939 accepted as Acanthephyra kingsleyi Spence Bate, 1888 (unaccepted > junior subjective synonym)
58. Species Acanthephyra stylorostratus (Spence Bate, 1888) accepted as Acanthephyra stylorostratis (Spence Bate, 1888) (unaccepted > misspelling)
59. Species Acanthephyra valdiviae Balss, 1914 accepted as Kemphyra corallina (A. Milne-Edwards, 1883) (unaccepted > junior subjective synonym)
60. Species Acanthephyra parva Coutière, 1905 (uncertain > nomen dubium)

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