1. Species Halimeda acerifolia (D.L.Ballantine) D.L.Ballantine & J.N.Norris, 2023
2. Species Halimeda bikinensis W.R.Taylor, 1950
3. Species Halimeda borneensis W.R.Taylor, 1975
4. Species Halimeda cereidesmis Kraft, 2007
5. Species Halimeda copiosa Goreau & E.A.Graham, 1967
6. Species Halimeda cryptica Colinvaux & E.A.Graham, 1964
7. Species Halimeda cuneata Hering, 1846
8. Species Halimeda cylindracea Decaisne, 1842
9. Species Halimeda discoidea Decaisne, 1842
10. Species Halimeda distorta (Yamada) Hillis-Colinvaux, 1968
11. Species Halimeda favulosa M.A.Howe, 1905
12. Species Halimeda fragilis W.R.Taylor, 1950
13. Species Halimeda gigas W.R.Taylor, 1950
14. Species Halimeda goreaui W.R.Taylor, 1962
15. Species Halimeda gracilis Harvey ex J.Agardh, 1887
16. Species Halimeda heteromorpha N'Yeurt, 2006
17. Species Halimeda howensis Kraft & J.M.Noble, 1994
18. Species Halimeda hummii D.L.Ballantine, 1982
19. Species Halimeda incrassata (J.Ellis) J.V.Lamouroux, 1816
20. Species Halimeda irregularis J.V.Lamouroux
21. Species Halimeda jolyana Ximenes, Bandeira-Pedrosa, Cassano, Oliveira-Carvalho, Verbruggen & S.M.B.Pereira, 2017
22. Species Halimeda kanaloana Vroom, 2006
23. Species Halimeda lacrimosa Howe, 1909
24. Species Halimeda lacunalis W.R.Taylor, 1950
25. Species Halimeda lessonii Bory de Saint-Vincent
26. Species Halimeda macroloba Decaisne, 1841
27. Species Halimeda macrophysa Askenasy, 1888
28. Species Halimeda magnidisca J.M.Noble, 1986
29. Species Halimeda melanesica Valet, 1966
30. Species Halimeda micronesica Yamada, 1941
31. Species Halimeda minima (W.R.Taylor) Hillis-Colinvaux, 1968
32. Species Halimeda monile (J.Ellis & Solander) J.V.Lamouroux, 1816
33. Species Halimeda nervata Zanardini, 1858
34. Species Halimeda opuntia (Linnaeus) J.V.Lamouroux, 1816
35. Species Halimeda ovata J.Agardh
36. Species Halimeda papyracea Zanardini, 1851
37. Species Halimeda pumila Verbruggen, D.S.Littler & Littler, 2007
38. Species Halimeda pygmaea Verbruggen, D.S.Littler & Littler, 2007
39. Species Halimeda rectangularis J.Agardh, 1894
40. Species Halimeda renschii Hauck, 1886
41. Species Halimeda ryukyuensis Kojima, Hanyuda & Kawai, 2015
42. Species Halimeda saportae Fuchs
43. Species Halimeda scabra M.A.Howe, 1905
44. Species Halimeda sertolara (Bertoloni) Zanardini, 1840
45. Species Halimeda simulans M.Howe, 1907
46. Species Halimeda soniae Ximenes, Oliveira-Carvalho, M.E. Bandeira-Pedrosa & Cassano, 2019
47. Species Halimeda stenodactylis J.Agardh
48. Species Halimeda stuposa W.R.Taylor, 1950
49. Species Halimeda taenicola W.R.Taylor, 1950
50. Species Halimeda taiwanensis S.Phetcharat, K.Pattarach, P.-C.Chen, W.-L.Wang, S.-L.Liu & J.Mayakun, 2023
51. Species Halimeda tuberosa Biasoletto
52. Species Halimeda tuna (J.Ellis & Solander) J.V.Lamouroux, 1816
53. Species Halimeda velasquezii W.R.Taylor, 1962
54. Species Halimeda xishaensis C.K.Tseng & M.L.Dong, 1980
55. Species Halimeda batanensis W.R.Taylor, 1973 accepted as Halimeda renschii Hauck, 1886 (synonym)
56. Species Halimeda brevicaulis Kützing, 1858 accepted as Halimeda incrassata (J.Ellis) J.V.Lamouroux, 1816 (synonym)
57. Species Halimeda cordata J.Agardh, 1887 accepted as Halimeda opuntia (Linnaeus) J.V.Lamouroux, 1816 (synonym)
58. Species Halimeda cylindrica Kützing, 1849 accepted as Halimeda cylindracea Decaisne, 1842
59. Species Halimeda hederacea (E.S.Barton) Hilis-Colinvaux, 1968 accepted as Halimeda distorta (Yamada) Hillis-Colinvaux, 1968
60. Species Halimeda laxa E.S.Barton, 1900 accepted as Halimeda gracilis f. laxa (E.S.Barton) E.S.Barton, 1901 (synonym)
61. Species Halimeda multicaulis (Lamarck) J.V.Lamouroux, 1816 accepted as Halimeda opuntia (Linnaeus) J.V.Lamouroux, 1816 (synonym)
62. Species Halimeda obovata Kützing, 1858 accepted as Halimeda cuneata Hering, 1846 (synonym)
63. Species Halimeda orientalis W.J.Gilbert, 1947 accepted as Halimeda micronesica Yamada, 1941
64. Species Halimeda platydisca Decaisne, 1842 accepted as Halimeda tuna (J.Ellis & Solander) J.V.Lamouroux, 1816 (synonym)
65. Species Halimeda polydactylis J.Agardh, 1887 accepted as Halimeda cylindracea Decaisne, 1842 (synonym)
66. Species Halimeda tridens (J.Ellis & Solander) J.V.Lamouroux, 1812 accepted as Halimeda incrassata (J.Ellis) J.V.Lamouroux, 1816
67. Species Halimeda triloba Decaisne, 1842 accepted as Halimeda opuntia f. triloba (Decaisne) J.Agardh, 1887 accepted as Halimeda opuntia (Linnaeus) J.V.Lamouroux, 1816 (synonym)
68. Species Halimeda versatilis J.Agardh, 1887 accepted as Halimeda cuneata Hering, 1846 (synonym)
69. Species Halimeda monilis (Ellis & Solander) J.V.Lamouroux (uncertain)
70. Species Halimeda peltata Gopinathan & Panigrahy, 1983 (uncertain)

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