Penicillus lamourouxii
- kingdom: Plantae
- phylum: Chlorophyta
- class: Ulvophyceae
- order: Bryopsidales
- family: Udoteaceae
- genus: Penicillus
- species: Penicillus lamourouxii
Colonel Hill
Crooked Island and Long CayGeorge Town
ExumaDuncan Town
Ragged Island
BahamasSandy Bay
Bay Islands
HondurasPort Royal
KingstonManchioneal
PortlandRunaway Bay
St Ann
JamaicaGuánica
Guanica
Puerto RicoCutler
East Perrine
Key West
Marathon
Palmetto Bay
Florida
United States