1. Species Chordaria chordaeformis (Kjellman) H.Kawai & S.-H.Kim, 2002
2. Species Chordaria cladosiphon Kützing, 1859
3. Species Chordaria dissessa Setchell & N.L.Gardner, 1924
4. Species Chordaria flagelliformis (O.F.Müller) C.Agardh, 1817
5. Species Chordaria gracilis Setchell & N.L.Gardner, 1924
6. Species Chordaria linearis (J.D.Hooker & Harvey) A.D.Cotton, 1915
7. Species Chordaria magellanica Kylin, 1940
8. Species Chordaria okhotskensis N.G.Klochkova & H.-S.Kim, 2012
9. Species Chordaria abietina Ruprecht ex Farlow, 1875 accepted as Analipus japonicus (Harvey) M.J.Wynne, 1971
10. Species Chordaria andersonii Kuckuck, 1929 accepted as Haplogloia kuckuckii Kylin, 1940
11. Species Chordaria attenuata Foslie, 1887 accepted as Scytosiphon lomentaria (Lyngbye) Link, 1833
12. Species Chordaria australis J.Agardh, 1841 accepted as Scytothamnus australis (J.Agardh) J.D.Hooker & Harvey, 1845
13. Species Chordaria baltica (Gobi) Gobi, 1879 accepted as Dictyosiphon chordaria Areschoug, 1847 (synonym)
14. Species Chordaria capensis (Kützing) Areschoug, 1851 accepted as Chordariopsis capensis (C.Agardh) Kylin, 1940
15. Species Chordaria chordaria (Harvey) M.Howe, 1924 accepted as Chordaria cladosiphon Kützing, 1859 (synonym)
16. Species Chordaria dictyosiphon (Harvey) Kuetzing, 1859 accepted as Chordaria cladosiphon Kützing, 1859 (synonym)
17. Species Chordaria disessa Setchell & Gardner, 1924 accepted as Sphaerotrichia disessa (Setchell & N.L.Gardner) A.D.Zinova, 1958
18. Species Chordaria divaricata C.Agardh, 1817 accepted as Sphaerotrichia divaricata (C.Agardh) Kylin, 1940
19. Species Chordaria erythraea Montagne, 1849 accepted as Stilophora erythraea (Montagne) Papenfuss, 1968 (synonym)
20. Species Chordaria filum (Linnaeus) C.Agardh, 1817 accepted as Chorda filum (Linnaeus) Stackhouse, 1797
21. Species Chordaria firma E.S.Gepp, 1904 accepted as Sphaerotrichia firma (E.S.Gepp) A.D.Zinova, 1958 (synonym)
22. Species Chordaria flexuosa C.Agardh, 1824 accepted as Nemacystus flexuosus (C.Agardh) Kylin, 1940
23. Species Chordaria gunjii Yendo, 1913 accepted as Analipus gunjii (Yendo) Kogame & Yoshida, 1997
24. Species Chordaria multifida Lyngbye, 1819 accepted as Nemalion multifidum (Lyngbye) Chauvin, 1842 (synonym)
25. Species Chordaria nagaii Tokida, 1938 accepted as Pseudochorda nagaii (Tokida) Inagaki, 1958
26. Species Chordaria nodulosa (C.Agardh) C.Agardh, 1820 accepted as Stilophora nodulosa (C.Agardh) P.C.Silva, 1996
27. Species Chordaria paradoxa (Roth) Lyngbye, 1819 accepted as Spermatochnus paradoxus (Roth) Kützing, 1843
28. Species Chordaria rhizodes (C.Agardh) C.Agardh, 1817 accepted as Stilophora tenella (Esper) P.C.Silva, 1996
29. Species Chordaria rotunda (Hudson) C.Agardh, 1817 accepted as Polyides rotunda (Hudson) Gaillon, 1828
30. Species Chordaria scorpioides (Hornemann) Lyngbye, 1819 accepted as Ascophyllum nodosum (Linnaeus) Le Jolis, 1863
31. Species Chordaria simplex Harvey, 1857 accepted as Myelophycus simplex (Harvey) Papenfuss, 1967
32. Species Chordaria sordida Bory de Saint-Vincent, 1828 accepted as Levringia sordida (Bory de Saint-Vincent) Kylin, 1940
33. Species Chordaria spicata Suhr, 1839 accepted as Lessonia spicata (Suhr) Santelices, 2012
34. Species Chordaria tomentosa (Hudson) Fries, 1845 accepted as Spongonema tomentosum (Hudson) Kützing, 1849
35. Species Chordaria tuberculosa (Hornemann) Lyngbye, 1819 accepted as Stilophora nodulosa (C.Agardh) P.C.Silva, 1996
36. Species Chordaria villosa (Hudson) C.Agardh, 1817 accepted as Arthrocladia villosa (Hudson) Duby, 1830
37. Species Chordaria viridis (O.F.Müller) C.Agardh, 1817 accepted as Desmarestia viridis (O.F.Müller) J.V.Lamouroux, 1813
38. Species Chordaria wigghii (Turner) Wallroth, 1833 accepted as Naccaria wiggii (Turner) Endlicher ex J.Agardh, 1842 (synonym)
39. Species Chordaria nemalion (Bertoloni) C.Agardh, 1820 (uncertain, uncertain taxonomic status subjected to verification)

 The webpage text is licensed under a Creative Commons Attribution 4.0 License