Gelidium arenarium
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Gelidiales
- family: Gelidiaceae
- genus: Gelidium
- species: Gelidium arenarium
Hickam Housing- Iroquois Point
Hawaii
United States
Gelidium arenarium Hickam Housing Iroquois Point