1. Species Gymnogongrus aequicrassus Børgesen, 1924
2. Species Gymnogongrus antarcticus Skottsberg, 1953
3. Species Gymnogongrus caespitosus M.S.Calderon & S.M.Boo, 2017
4. Species Gymnogongrus carnosus Setchell & N.L.Gardner, 1924
5. Species Gymnogongrus crenulatus (Turner) J.Agardh, 1851
6. Species Gymnogongrus crustiformis E.Y.Dawson, 1961
7. Species Gymnogongrus dilatatus (Turner) J.Agardh, 1851
8. Species Gymnogongrus durvillei (Bory) M.S.Calderon & S.M.Boo, 2017
9. Species Gymnogongrus filiformis Kützing, 1869
10. Species Gymnogongrus firmus J.E.Areschoug, 1854
11. Species Gymnogongrus furcatus (J.D.Hooker & Harvey) Kützing, 1869
12. Species Gymnogongrus furcellatus Kützing, 1949
13. Species Gymnogongrus gregarius Baardseth, 1941
14. Species Gymnogongrus griffithsiae (Turner) C.Martius, 1833
15. Species Gymnogongrus guadalupensis E.Y.Dawson, 1961
16. Species Gymnogongrus irregularis Zanardini, 1874
17. Species Gymnogongrus johnstonii (Setchell & N.L.Gardner) E.Y.Dawson, 1961
18. Species Gymnogongrus martinensis Setchell & N.L.Gardner, 1937
19. Species Gymnogongrus melanothrix Grunow
20. Species Gymnogongrus minutus W.R.Taylor, 1971
21. Species Gymnogongrus nigricans P.J.L.Dangeard, 1952
22. Species Gymnogongrus nodifer J.Agardh, 1879
23. Species Gymnogongrus patens (Goodenough & Woodward) J.Agardh, 1851
24. Species Gymnogongrus platyphyllus N.L.Gardner, 1927
25. Species Gymnogongrus sinicola E.Y.Dawson, 1944
26. Species Gymnogongrus tenuis J.Agardh, 1849
27. Species Gymnogongrus tetrasporifer Papenfuss, 1990
28. Species Gymnogongrus torreyi (C.Agardh) J.Agardh, 1851
29. Species Gymnogongrus torulosus (J.D.Hooker & Harvey) F.Schmitz, 1897
30. Species Gymnogongrus turquetii Hariot, 1907
31. Species Gymnogongrus capensis (C.Agardh) J.Agardh, 1851 accepted as Ahnfeltiopsis complicata (Kützing) P.C.Silva & DeCew, 1992
32. Species Gymnogongrus catenatus Yendo, 1920 accepted as Besa catenata (Yendo) M.S.Calderon & S.M. Boo, 2016
33. Species Gymnogongrus chiton (M.A.Howe) P.C.Silva & DeCew, 1979 accepted as Fredericqia chiton (M.Howe) Maggs, L.Le Gall, Mineur, Provan & G.W. Saunders, 2013
34. Species Gymnogongrus chnoosporoides T.Tanaka & Pham-Hoàng Hô, 1962 accepted as Ahnfeltiopsis chnoosporoides (T.Tanaka & P.H.Hô) Masuda, 1993
35. Species Gymnogongrus comosus Kützing, 1869 accepted as Ahnfeltia plicata (Hudson) E.M.Fries, 1836
36. Species Gymnogongrus complicatus (Kützing) Papenfuss, 1943 accepted as Ahnfeltiopsis complicata (Kützing) P.C.Silva & DeCew, 1992
37. Species Gymnogongrus coriaceus (Kützing) Grunow, 1867 accepted as Ahnfeltiopsis glomerata (J.Agardh) P.C.Silva & DeCew, 1992
38. Species Gymnogongrus corymbosus J.Agardh, 1849 accepted as Ahnfeltiopsis glomerata (J.Agardh) P.C.Silva & DeCew, 1992
39. Species Gymnogongrus densus J.Agardh, 1851 accepted as Ahnfeltiopsis densa (J.Agardh) P.C.Silva & DeCew, 1992
40. Species Gymnogongrus devoniensis (Greville) Schotter, 1968 accepted as Ahnfeltiopsis devoniensis (Greville) P.C.Silva & DeCew, 1992
41. Species Gymnogongrus disciplinalis (Bory) J.Agardh, 1851 accepted as Asterfilopsis disciplinalis (Bory) M.S.Calderon & S.M.Boo, 2016
42. Species Gymnogongrus divaricatus Holmes, 1896 accepted as Besa divaricata (Holmes) M.S.Calderon & S.M.Boo, 2016
43. Species Gymnogongrus fastigiatus Harvey, 1859 accepted as Ahnfeltiopsis fastigiata J.A.Lewis & Womersley, 1994
44. Species Gymnogongrus flabelliformis Harvey, 1857 accepted as Ahnfeltiopsis flabelliformis (Harvey) Masuda, 1993
45. Species Gymnogongrus foliosus Harvey, 1862 accepted as Mychodea marginifera (J.E. Areschoug) Kraft, 1978
46. Species Gymnogongrus furcellatus (C.Agardh) J.Agardh, 1851 accepted as Asterfilopsis furcellata (C.Agardh) M.S.Calderon & S.M.Boo, 2016
47. Species Gymnogongrus glomeratus J.Agardh, 1849 accepted as Ahnfeltiopsis glomerata (J.Agardh) P.C.Silva & DeCew, 1992
48. Species Gymnogongrus hancockii E.Y.Dawson, 1944 accepted as Ahnfeltiopsis hancockii (E.Y.Dawson) J.N.Norris & Fredericq, 2014
49. Species Gymnogongrus humilis Lindauer, 1947 accepted as Ahnfeltiopsis humilis (Lindauer) J.A.Lewis & Womersley, 1994
50. Species Gymnogongrus implicatus Kutzing, 1869 accepted as Ahnfeltia durvillei var. implicata (Kutzing) M.Howe, 1914 (synonym)
51. Species Gymnogongrus intermedius Kylin, 1938 accepted as Ahnfeltiopsis intermedia (Kylin) Stegenga, Bolton & R.J.Anderson, 1997
52. Species Gymnogongrus japonicus Suringar, 1867 accepted as Ahnfeltiopsis flabelliformis (Harvey) Masuda, 1993
53. Species Gymnogongrus javanicus Sonder, 1854 accepted as Gracilaria debilis (Forsskål) Børgesen, 1932
54. Species Gymnogongrus leptophyllus J.Agardh, 1876 accepted as Besa leptophylla (J.Agardh) M.S.Calderon & K.A.Miller, 2016
55. Species Gymnogongrus ligulatus Harvey ex Kützing, 1869 accepted as Yonagunia ligulata (Harvey ex Kützing) Manghisi, M.Morabito, De Clerck & Le Gall, 2015
56. Species Gymnogongrus linearis (C.Agardh) J.Agardh, 1851 accepted as Ahnfeltiopsis linearis (C.Agardh) P.C.Silva & DeCew, 1992
57. Species Gymnogongrus nicaeënsis (J.V.Lamouroux ex Duby) Ardissone & Straforello, 1877 accepted as Schottera nicaeensis (J.V.Lamouroux ex Duby) Guiry & Hollenberg, 1975 (synonym)
58. Species Gymnogongrus norvegicus (Gunnerus) J.Agardh, 1851 accepted as Chondrus crispus Stackhouse, 1797 (synonym)
59. Species Gymnogongrus palmettoides (J.Agardh) Ardissone, 1893 accepted as Phyllophora sicula (Kützing) Guiry & L.M.Irvine, 1976 (synonym)
60. Species Gymnogongrus paradoxus Suringar, 1874 accepted as Besa paradoxa (Suringar) M.S.Calderon & S.M.Boo, 2016
61. Species Gymnogongrus pinnulatus Harvey, 1857 accepted as Chondrus pinnulatus (Harvey) Okamura, 1930
62. Species Gymnogongrus plicatus (Hudson) Kützing accepted as Ahnfeltia plicata (Hudson) E.M.Fries, 1836
63. Species Gymnogongrus polycladus (Kützing) J.Agardh, 1851 accepted as Ahnfeltiopsis polyclada (Kützing) P.C.Silva & DeCew, 1992
64. Species Gymnogongrus pusillus (Montagne) Feldmann & Mayozer, 1938 accepted as Ahnfeltiopsis pusilla (Montagne) P.C.Silva & DeCew, 1992
65. Species Gymnogongrus pygmaeus J.Agardh, 1851 accepted as Ahnfeltiopsis pygmaea (J.Agardh) P.C.Silva & DeCew, 1992
66. Species Gymnogongrus quinhonensis P.H.Hô, 1969 accepted as Ahnfeltiopsis quinhonensis (P.H.Hô) Masuda, 1993
67. Species Gymnogongrus serenei E.Y.Dawson, 1954 accepted as Ahnfeltiopsis serenei (E.Y.Dawson) Masuda, 1993
68. Species Gymnogongrus setaceus Kützing, 1869 accepted as Ahnfeltia setacea (Kützing) F.Schmitz, 1893 (synonym)
69. Species Gymnogongrus smithii W.R.Taylor, 1945 accepted as Ahnfeltiopsis smithii (W.R.Taylor) K.M.Dreckmann & I.Stout, 1993
70. Species Gymnogongrus vermicularis (C.Agardh) J.Agardh, 1851 accepted as Ahnfeltiopsis vermicularis (C.Agardh) P.C.Silva & DeCew, 1992

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