Chaetomorpha brachygona
- kingdom: Plantae
- phylum: Chlorophyta
- class: Ulvophyceae
- order: Cladophorales
- family: Cladophoraceae
- genus: Chaetomorpha
- species: Chaetomorpha brachygona
George Town
ExumaAbraham’s Bay
Mayaguana
BahamasWelchman Hall
Saint Thomas
BarbadosCap-Haïtien
Nord
HaitiPort Antonio
Portland
JamaicaLa Parguera
LajasTallaboa
Penuelas
Puerto RicoKey West
Florida
United StatesSaint Croix
Saint Croix Island
Virgin Islands, U.S.