Erythrodermis traillii
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Gigartinales
- family: Phyllophoraceae
- genus: Erythrodermis
- species: Erythrodermis traillii
- Nortorf
Schleswig-Holstein
Germany- Berwick-Upon-Tweed
England- Dunbar
Scotland
United Kingdom- Nahant
Massachusetts- Hampton
- Hampton Falls
New Hampshire- Newport
Rhode Island
United States