Gracilaria dura
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Gracilariales
- family: Gracilariaceae
- genus: Gracilaria
- species: Gracilaria dura
- Antibes
B8
France- Haifa
Haifa
Israel- Flic en Flac
Black River- Ebene
Plaines Wilhems
Mauritius