1. Species Erythrotrichia ascendens E.Y.Dawson, 1953
2. Species Erythrotrichia bangioides Levring, 1955
3. Species Erythrotrichia bertholdii Batters, 1900
4. Species Erythrotrichia biseriata Tanaka, 1944
5. Species Erythrotrichia carnea (Dillwyn) J.Agardh, 1883
6. Species Erythrotrichia elongata Lami, 1938
7. Species Erythrotrichia foliiformis G.R.South & N.M.Adams, 1976
8. Species Erythrotrichia harveyi (Areschoug) Papenfuss, 1940
9. Species Erythrotrichia hunterae N.L.Gardner, 1936
10. Species Erythrotrichia incrassata T.Tanaka, 1944
11. Species Erythrotrichia investiens (Zanardini) Bornet, 1892
12. Species Erythrotrichia johnawestia X.Wen, G.C.Zuccarello & G.-H.Kim, 2023
13. Species Erythrotrichia kylinii N.L.Gardner, 1927
14. Species Erythrotrichia longistipitata J.A.West, Loiseaux-de Goër & Zuccarello, 2012
15. Species Erythrotrichia minuta B.F.Zheng & J.Li
16. Species Erythrotrichia parietalis T.Tanaka, 1952
17. Species Erythrotrichia parksii N.L.Gardner, 1927
18. Species Erythrotrichia platyphylla Stegenga, Engledow, Bolton & Anderson, 2001
19. Species Erythrotrichia polymorpha M.Howe, 1914
20. Species Erythrotrichia porphyroides N.L.Gardner, 1927
21. Species Erythrotrichia propagulosa B.F.Zheng & J.Li
22. Species Erythrotrichia ramulosa B.F.Zheng & J.Li
23. Species Erythrotrichia reflexa (P.L.Crouan & H.M.Crouan) Thuret ex De Toni, 1897
24. Species Erythrotrichia regularis Noda, 1971
25. Species Erythrotrichia rhizoidea Cleland, 1917
26. Species Erythrotrichia sargassicola Noda, 1970
27. Species Erythrotrichia scalaris P.J.L.Dangeard, 1968
28. Species Erythrotrichia simplex B.F.Zheng & J.Li
29. Species Erythrotrichia tetraseriata N.L.Gardner, 1927
30. Species Erythrotrichia vexillaris (Montagne) G.Hamel, 1929
31. Species Erythrotrichia welwitschii (Ruprecht) Batters, 1902
32. Species Erythrotrichia australis Levring, 1953 accepted as Erythrotrichia carnea (Dillwyn) J.Agardh, 1883 (synonym)
33. Species Erythrotrichia boryana (Montagne) Berthold, 1882 accepted as Porphyrostromium boryanum (Montagne) P.C.Silva, 1996 (synonym)
34. Species Erythrotrichia californica Kylin, 1941 accepted as Erythrotrichia tetraseriata N.L.Gardner, 1927 (synonym)
35. Species Erythrotrichia ceramicola (Lyngbye) Areschoug, 1850 accepted as Erythrotrichia carnea (Dillwyn) J.Agardh, 1883
36. Species Erythrotrichia ciliaris (Carmichael) Thuret, 1863 accepted as Porphyrostromium ciliare (Carmichael) M.J.Wynne, 1986 (synonym)
37. Species Erythrotrichia discigera Berthold, 1882 accepted as Erythropeltis discigera (Berthold) F.Schmitz, 1896 (synonym)
38. Species Erythrotrichia filibasalis Noda, 1987 accepted as Erythrotrichia carnea (Dillwyn) J.Agardh, 1883 (synonym)
39. Species Erythrotrichia japonica Tokida, 1938 accepted as Porphyrostromium japonicum (Tokida) Kikuchi, 2011 (synonym)
40. Species Erythrotrichia ligulata Womersley, 1994 accepted as Porphyrostromium ligulatum (Womersley) J.A.West & Zuccarello, 2011 (synonym)
41. Species Erythrotrichia nigrescens P.J.L.Dangeard, 1969 accepted as Porphyrostromium obscurum (Berthold) Kornmann, 1987 accepted as Porphyrostromium ciliare (Carmichael) M.J.Wynne, 1986 (synonym)
42. Species Erythrotrichia obscura Berthold, 1882 accepted as Porphyrostromium ciliare (Carmichael) M.J.Wynne, 1986 (synonym)
43. Species Erythrotrichia pseudopulvinata P.J.L.Dangeard, 1968 accepted as Porphyrostromium ciliare (Carmichael) M.J.Wynne, 1986 (synonym)
44. Species Erythrotrichia pulvinata N.L.Gardner, 1927 accepted as Porphyrostromium pulvinatum (N.L.Gardner) J.A.West & Zuccarello, 2011 (synonym)
45. Species Erythrotrichia pulvinata Noda & Honda, 1970 accepted as Erythrotrichia filibasalis Noda, 1987 accepted as Erythrotrichia carnea (Dillwyn) J.Agardh, 1883 (synonym)
46. Species Erythrotrichia tristanensis Baardseth, 1941 accepted as Porphyrostromium boryanum (Montagne) P.C.Silva, 1996
47. Species Erythrotrichia rosea P.J.L.Dangeard, 1968 (uncertain)
48. Species Erythrotrichia simplex P.J.L.Dangeard, 1968 (uncertain > unassessed)

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