Gymnogongrus crenulatus
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Gigartinales
- family: Phyllophoraceae
- genus: Gymnogongrus
- species: Gymnogongrus crenulatus
Victoria
British Columbia
CanadaAreosa
Viana do Castelo
Viana do Castelo
PortugalNarragansett Pier
Rhode Island
United States