| Agarophyton Gurgel J.N. Norris & Fredericq, 2018 |
| Agarophyton vermiculophyllum (Ohmi) Gurgel, J.N. Norris & Frederiq, 2018 |
| Crassiphycus Guiry, Gurgel, J.N. Norris & Fredericq, 2018 |
| Crassiphycus caudatus (J. Agardh) Gurgel, J.N. Norris & Fredericq, 2018 |
| Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris & Fredericq, 2018 |
| Crassiphycus crassissimus (P. Crouan & H. Crouan) Gurgel, J.N. Norris & Fredericq, 2018 |
| Crassiphycus usneoides (Mertens ex J. Agardh) Gurgel, J.N. Norris & Fredericq, 2018 |
| Gracilaria Grev., 1830 |
| Gracilaria andersonii (Grunow) Kylin, 1941 |
| Gracilaria apiculata P.L. Crouan & H.M. Crouan, 1865 |
| Gracilaria armata (C. Agardh) Grev., 1830 |
| Gracilaria ascidiicola E.Y. Dawson, 1961 |
| Gracilaria blodgettii Harv., 1853 |
| Gracilaria bursa-pastoris (S.G. Gmel.) P.C. Silva, 1952 |
| Gracilaria caudata J. Agardh, 1852 |
| Gracilaria cerrosiana W.R. Taylor, 1945 |
| Gracilaria cervicornis (Turner) J. Agardh, 1852 |
| Gracilaria compressa (C. Agardh) Grev., 1830 |
| Gracilaria compressa var. fastigiata J. Agardh, 1846 |
| Gracilaria corallicola Zanardini, 1868 |