Bryothamnion triquetrum
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Rhodomelaceae
- genus: Bryothamnion
- species: Bryothamnion triquetrum
Welchman Hall
Saint Thomas
BarbadosCartagena
Bolívar
ColombiaPuerto Limón
Limón
Costa RicaAlamar
Guanabacoa
Havana
CubaLa Julia
Nacional
Dominican RepublicPort-de-Paix
Ti Port-de-Paix
Nord-OuestAquin
Sud
HaitiAnnotto Bay
St. Mary
JamaicaRío Alejandro
Colón
Panama- United States
Saint Croix
Saint Croix Island
Virgin Islands, U.S.