| Synonym/Old Name | New Name | Taxonomy Group | ||
|---|---|---|---|---|
 | Gigartina acicularis | Chondracanthus acicularis | Rhodophyta | more info |
 | Gigartina affinis | Polyopes affinis and | Rhodophyta | more info |
 | Gigartina chamissoi | Chondracanthus chamissoi | Rhodophyta | more info |
 | Gigartina exasperata | Chondracanthus exasperatus | Rhodophyta | more info |
 | Gigartina gaudichaudii | Sarcodiotheca gaudichaudii | Rhodophyta | more info |
 | Gigartina intermedia | Chondracanthus intermedius | Rhodophyta | more info |
 | Gigartina obtusifolia | Chondrus yendoi | Rhodophyta | more info |
 | Gigartina skottsbergii | Sarcopeltis skottsbergii | Rhodophyta | more info |
 | Gigartina stellata | Mastocarpus stellatus | Rhodophyta | more info |
 | Gigartina teedei | Chondracanthus teedei | Rhodophyta | more info |
| Gigartina teedei var. lusitanica | Chondracanthus teedei var. lusitanicus | Rhodophyta | more info |
 | Gigartina tenella | Chondracanthus tenellus | Rhodophyta | more info |
 | Goniotrichum elegans | Stylonema alsidii | Rhodophyta | more info |
 | Gracilaria chouae | Gracilaria parvispora | Rhodophyta | more info |
 | Gracilaria compressa | Gracilaria bursa-pastoris | Rhodophyta | more info |
 | Gracilaria crassa | Gracilaria canaliculata | Rhodophyta | more info |
 | Gracilaria eucheumatoides | Hydropuntia eucheumatoides | more info | |
 | Gracilaria fergusonii | Gracilaria debilis | Rhodophyta | more info |
 | Gracilaria lemaneiformis | Gracilariopsis lemaneiformis | Rhodophyta | more info |
 | Gracilaria multipartita var. angustissima | Gracilaria tikvahiae | Rhodophyta | more info |
Credits to Prof Leonel Pereira
