Cystoclonium purpureum
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Gigartinales
- family: Cystocloniaceae
- genus: Cystoclonium
- species: Cystoclonium purpureum
- France
Stykkishólmur
West
IcelandEdgartown
Gloucester
Lynn
Nahant
Rockport
Swampscott
MassachusettsHampton
New Hampshire
United States