Ribbed mussel
- kingdom: Animalia
- phylum: Mollusca
- class: Bivalvia
- order: Mytilida
- family: Mytilidae
- genus: Geukensia
- species: Geukensia demissa
Branford- Branford Center
- West Haven
Connecticut- Bay Pines
- Saint Augustine
- Saint Pete Beach
Florida- Mayo
- Selby-on-the-Bay
Maryland- Wareham Center
Massachusetts- Atlantic City
New Jersey- Beaufort
North Carolina- Gloucester Point
Virginia
United States