Dudresnaya crassa
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Gigartinales
- family: Dumontiaceae
- genus: Dudresnaya
- species: Dudresnaya crassa
Hamilton
Hamilton city- Saint George
Saint George
Bermuda
Portsmouth
Saint John
Dominica
Saint Croix
Saint Croix Island
Virgin Islands, U.S.