| Codium giraffa P.C. Silva, 1979 |
| Codium hubbsii E.Y. Dawson, 1950 |
| Codium intertextum Collins & Herv., 1917 |
| Codium isabelae W.R. Taylor, 1945 |
| Codium isthmocladum Vickers, 1905 |
| Codium isthmocladum subsp. clavatum (Collins & Hervey) P.C. Silva, 1960 |
| Codium isthmocladum subsp. isthmocladum Vickers, 1905 |
| Codium isthmocladum var. clavatum (Collins & Herv.) P.C. Silva, 1960 |
| Codium johnstonei P.C. Silva, 1951 |
| Codium latum Suringar, 1867 |
| Codium latum subsp. palmeri (E.Y. Dawson) P.C. Silva, 1962 |
| Codium longiramosum Setch. & N.L. Gardner, 1924 |
| Codium macdougalii E.Y. Dawson, 1944 |
| Codium magnum E.Y. Dawson, 1950 |
| Codium mucronatum J. Agardh, 1887 |
| Codium mucronatum f. californicum J. Agardh, 1887 |
| Codium palmeri E.Y. Dawson, 1945 |
| Codium picturatum Pedroche & P.C. Silva, 1996 |
| Codium pilgeri A.W.F. Schmidt, 1923 |
| Codium reductum Setch. & N.L. Gardner, 1924 |