1. Species Valonia aegagropila C.Agardh, 1823
2. Species Valonia barbadensis W.R.Taylor, 1969
3. Species Valonia caespitosa P.L.Crouan & H.M.Crouan
4. Species Valonia cespitula Zanardini ex Kützing
5. Species Valonia clavata Ardissone
6. Species Valonia confertoides
7. Species Valonia confervacea Zanardini
8. Species Valonia fastigiata Harvey ex J.Agardh, 1887
9. Species Valonia incrustans Kützing
10. Species Valonia macrophysa Kützing, 1843
11. Species Valonia nutrix (Kraft & A.J.K.Millar) Kraft, 2007
12. Species Valonia oblongata J.Agardh, 1887
13. Species Valonia opuntoides Zanardini
14. Species Valonia rhizophora Piccone & Grunow
15. Species Valonia tenuis P.L.Crouan & H.M.Crouan
16. Species Valonia tenuissima Frauenfeld
17. Species Valonia trabeculata Egerod, 1952
18. Species Valonia utricularis (Roth) C.Agardh, 1823
19. Species Valonia ventricosa J.Agardh, 1887
20. Species Valonia caespitula Zanardini, 1843 accepted as Valonia utricularis (Roth) C.Agardh, 1823
21. Species Valonia chlorocladus Hauck, 1886 accepted as Siphonocladus tropicus (P.Crouan & H.Crouan) J.Agardh, 1887 (synonym)
22. Species Valonia cladophora Kützing, 1863 accepted as Cladophora mamillata Leliaert, 2005 (synonym)
23. Species Valonia confervoides Harvey ex J.Agardh, 1887 accepted as Valoniopsis pachynema (G.Martens) Børgesen, 1934 (synonym)
24. Species Valonia favulosa C.Agardh, 1823 accepted as Dictyosphaeria cavernosa (Forsskål) Børgesen, 1932 (synonym)
25. Species Valonia filiformis Dickie, 1874 accepted as Siphonocladus filiformis (Dickie) De Toni, 1889 (synonym)
26. Species Valonia forbesii Harvey, 1860 accepted as Boergesenia forbesii (Harvey) Feldmann, 1938 (synonym)
27. Species Valonia intricata (Clemente) C.Agardh, 1823 accepted as Ascothamnion intricatum (Clemente) Kützing, 1849 accepted as Ulva intricata Clemente, 1807 (synonym)
28. Species Valonia ocellata M.Howe, 1920 accepted as Dictyosphaeria ocellata (M.Howe) J.L.Olsen, 1985 (synonym)
29. Species Valonia ovalis C.Agardh accepted as Halicystis ovalis (Lyngbye) J.E.Areschoug, 1850 accepted as Derbesia marina (Lyngbye) Solier, 1846 (synonym)
30. Species Valonia pachynema (G.Martens) Weber-van Bosse, 1913 accepted as Valoniopsis pachynema (G.Martens) Børgesen, 1934 (synonym)
31. Species Valonia pusilla C.Agardh ex Kützing, 1845 accepted as Siphonocladus pusillus (C.Agardh ex Kützing) Hauck, 1884 (synonym)
32. Species Valonia savignyana Audouin, 1826 accepted as Valonia aegagropila C.Agardh, 1823
33. Species Valonia uvaria Kützing, 1845 accepted as Valonia macrophysa Kützing, 1843 (synonym)
34. Species Valonia verticillata Kützing, 1847 accepted as Ernodesmis verticillata (Kützing) Børgesen, 1912 (synonym)
35. Species Valonia inconstans Kützing (uncertain)
36. Species Valonia pisum Bompard, 1867 (uncertain)
37. Species Valonia subverticillata P.L.Crouan & H.M.Crouan (uncertain)
38. Species Valonia syphunculus Bertoloni, 1833 (uncertain, uncertain taxonomic status subjected to verification)

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