| Nominal Species (n = 71) | Present allocation (n = 68) | Ref. |
|---|---|---|
| Ceramium affine Setchell & N.L. Gardner | Ceramium affine | 80701 |
| Griffithsia antarctica J.D. Hooker & Harvey | Griffithsia antarctica | 80701 |
| Antithamnion antillanum Børgesen, 1917 | Antithamnion antillanum | 80701 |
| Wrangelia bicuspidata Børgesen | Wrangelia bicuspidata | 80701 |
| Microcladia borealis Ruprecht | Microcladia borealis | 80701 |
| Ceramium botryocarpum A.W. Griffiths ex Harvey | Ceramium botryocarpum | 80701 |
| Ceramium brevizonatum H.E. Petersen | Ceramium brevizonatum | 80701 |
| Ceramium brevizonatum var. caraibicum H.E.Petersen & Børgesen, 1924 | Ceramium brevizonatum var. caraibicum | 80701 |
| Ceramium californicum J. Agardh | Ceramium californicum | 80701 |
| Ceramium cimbricum H.E. Petersen | Ceramium cimbricum | 80701 |
| Ceramium cingulatum Weber-van Bosse | Ceramium cingulatum | 80701 |
| Ceramium codicola J. Agardh | Ceramium codicola | 80701 |
| Ceramothamnion codii Richards, 1901 | Ceramium codii | 80701 |
| Pleonosporium complanatum Taylor | Pleonosporium complanatum | 80701 |
| Ceramium corniculatum Montagne | Ceramium corniculatum | 80701 |
| Microcladia coulteri Harvey | Microcladia coulteri | 80701 |
| Ceramium cruciatum F.S. Collins & Hervey | Ceramium cruciatum | 80701 |
| Ceramium deslongchampsii Chauvin ex Duby | Ceramium deslongchampsii | 80701 |
| Griffithsia devoniensis Harvey | Griffithsia devoniensis | 80701 |
| Ceramium dozei Hariot | Ceramium dozei | 80701 |
| Haloplegma duperreyi Montagne | Haloplegma duperreyi | 80701 |
| Ceramium echionotum J. Agardh | Ceramium echionotum | 80701 |
| Callithamnion ecuadoreanum Taylor, 1945 | Callithamnion ecuadoreanum | 3477 |
| Callithamnion epiphyticum Taylor, 1945 | Callithamnion epiphyticum | 3477 |
| Lejolisia exposita C.W. Schneider & Searles | Lejolisia exposita | 80701 |
| Ceramium fastigiatum f. flaccidum H. Petersen | Ceramium cimbricum | 80701 |
| Euptilota fergusonii A.D. Cotton | Euptilota fergusonii | 80701 |
| Ceramium fimbriatum Setchell & N.L. Gardner | Ceramium fimbriatum | 80701 |
| Gayliella flaccida (Harvey ex Kützing) T.O.Cho & L.J.McIvor, 2008 | Gayliella flaccida | 80701 |
| Ceramium floridanum J. Agardh | Ceramium floridanum | 80701 |
| Griffithsia globulifera Harvey ex Kützing | Griffithsia globulifera | 80701 |
| Ceramium gracillimum Gobi | Ceramium tenuicorne | 84290 |
| Ptilota gunneri P.C. Silva, Maggs & L.M. Irvine | Ptilota gunneri | 80701 |
| Griffithsia heteromorpha Kützing | Griffithsia heteromorpha | 80701 |
| Ceramium hoodii Taylor, 1945 | Ceramium hoodii | 3477 |
| Ceramium howellii Setchell & N.L. Gardner | Ceramium howellii | 80701 |
| Ceramium involutum Kützing | Ceramium involutum | 80701 |
| Corallophila kleiwegii Weber-van Bosse | Corallophila kleiwegii | 80701 |
| Microthamnion kuetzingianum Nägeli | Microthamnion kuetzingianum | 80701 |
| Ceramium luetzelburgii O.C.Schmidt | Ceramium luetzelburgii | 80701 |
| Ceramium macilentum J. Agardh | Ceramium macilentum | 80701 |
| Ceramium manorense P. Anand | Ceramium manorense | 80701 |
| Ceramium maryae Weber-van Bosse | Ceramium maryae | 80701 |
| Ceramium mazatlanense E.Y. Dawson, 1950 | Ceramium macilentum | 80701 |
| Griffithsia metcalfii C.K. Tseng | Griffithsia metcalfii | 80701 |
| Crouania minutissima Yamada | Crouania minutissima | 80701 |
| Antithamnion minutissimum Levring, 1941 | Pterothamnion minutissimum | 3477 |
| Centroceras minutum Yamada | Centroceras minutum | 80701 |
| Griffithsia monilis Harvey | Griffithsia monilis | 80701 |
| Antithamnion nipponicum Yamada & Inagaki, 1935 | Antithamnion nipponicum | 3477 |
| Seirospora occidentalis Børgesen | Seirospora occidentalis | 80701 |
| Antithamnion ogdeniae I.A.Abbott, 1979 | Antithamnion decipiens | 80701 |
| Griffithsia ovalis Harvey, 1855 | Griffithsia ovalis | 80701 |
| Griffithsia pacifica Kylin | Griffithsia pacifica | 80701 |
| Callithamnion paschale Børgesen, 1924 | Callithamnion paschale | 80701 |
| Ceramium penicillatum Areschoug | Ceramium penicillatum | 80701 |
| Callithamnion pikeanum Harvey | Callithamnion pikeanum | 80701 |
| Dasyphila plumarioides Yendo | Dasyphila plumarioides | 80701 |
| Ceramium prostratum E.Y. Dawson, 1963 | Ceramium prostratum | 80701 |
| Ceramium recissum Kylin | Ceramium recissum | 80701 |
| Ceramium rubrum Agardh, 1811 | Ceramium virgatum | 3477 |
| Ptilota serrata Kützing | Ptilota serrata | 80701 |
| Ceramium skottsbergii Petersen, 1924 | Ceramium skottsbergii | 80701 |
| Ceramium strictum var. strictum Kützing | Ceramium strictum var. strictum | 80701 |
| Ptilothamnion subsimplex E. Gordon | Ptilothamnion subsimplex | 80701 |
| Ceramium templetonii Setchell & N.L. Gardner, 1937 | Ceramium templetonii | 80701 |
| Griffithsia tenuis C. Agardh, 1828 | Anotrichium secundum | 80701 |
| Spyridia velasquezii Trono | Spyridia velasquezii | 80701 |
| Antithamnion veleroae Taylor, 1945 | Antithamnion veleroae | 3477 |
| Ceramium virgatum Roth, 1797 | Ceramium virgatum | 80701 |
| Ceramium zacae Setchell & N.L. Gardner | Ceramium zacae | 80701 |