Halimeda simulans
- kingdom: Plantae
- phylum: Chlorophyta
- class: Ulvophyceae
- order: Bryopsidales
- family: Halimedaceae
- genus: Halimeda
- species: Halimeda simulans
- Duncan Town
Ragged Island
Bahamas- Port Antonio
Portland
Jamaica- Koror State
- Koror Town
Koror
Palau- Culebra
Culebra- Guánica
Guanica- Guayanilla
- Magas Arriba
Guayanilla- La Parguera
Lajas- Tallaboa
Penuelas- Central Aguirre
Salinas
Puerto Rico- Vieux Fort
Vieux-Fort
Saint Lucia- Mahonda
South
Zanzibar Central
Tanzania- Marathon
Florida
United States