Callithamnion corymbosum
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Ceramiales
- family: Callithamniaceae
- genus: Callithamnion
- species: Callithamnion corymbosum
Chester
Nova Scotia
CanadaGilleleje
Capital Region
DenmarkPort Antonio
Portland
JamaicaGroton
Long Hill
New London
ConnecticutEast Falmouth
Edgartown
Lynn
Nantucket
Oak Bluffs
Salem
Vineyard Haven
Massachusetts
United States