Ralfsia verrucosa
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Ralfsiales
- family: Ralfsiaceae
- genus: Ralfsia
- species: Ralfsia verrucosa
Nortorf
Schleswig-Holstein
Germany
Berwick-Upon-Tweed- Borough Green
- Holt
- Looe
- Swanage
England
United Kingdom
San Diego- Santa Barbara
California- Bridgeport
- Woodmont
Connecticut- Lā‘ie
Hawaii- New Castle
New Hampshire- Pelham Manor
New York- Newport
Rhode Island
United States