| Synonym/Old Name | New Name | Taxonomy Group | ||
|---|---|---|---|---|
 | Porphyridium cruentum | Porphyridium purpureum | Rhodophyta | more info |
 | Prorocentrum minimum | Prorocentrum minimum | Dinoflagellata | more info |
 | Pterocladia capillacea | Pterocladiella capillacea | Rhodophyta | more info |
 | Pyropia californica | Pyropia nereocystis | Rhodophyta | more info |
 | Rhodella maculata | Rhodella violacea | Rhodophyta | more info |
 | Rhodella reticulata | Dixoniella grisea | Rhodophyta | more info |
 | Rhodoglossum denticulatum | Mazzaella denticulata | Rhodophyta | more info |
 | Rhodomela larix | Neorhodomela larix | Rhodophyta | more info |
 | Rhodomonas baltica | Cryptomonas baltica | Cryptophyceae | more info |
 | Rhodymenia corticata | Gracilaria corticata | Rhodophyta | more info |
 | Rhodymenia palmata | Palmaria palmata | Rhodophyta | more info |
 | Rosenvingea intricata | Rosenvingea endiviifolia | Rhodophyta | more info |
 | Saccharina bongardiana | Hedophyllum bongardianum | Phaeophyceae | more info |
 | Saccharina dentigera | Hedophyllum dentigerum | Phaeophyceae | more info |
 | Saccharina digitata | Laminaria digitata | Phaeophyceae | more info |
 | Saccorhiza bulbosa | Saccorhiza polyschides | Phaeophyceae | more info |
 | Sarcophycus potatorum | Durvillaea potatorum | Phaeophyceae | more info |
 | Sargassum binderi | Sargassum aquifolium | Phaeophyceae | more info |
 | Sargassum crassifolium | Sargassum aquifolium | Phaeophyceae | more info |
 | Sargassum cristaefolium | Sargassum ilicifolium | Phaeophyceae | more info |
Credits to Prof Leonel Pereira
