Costaria turneri
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Laminariales
- family: Costariaceae
- genus: Costaria
- species: Costaria turneri
North Saanich
British Columbia
Canada
Monterey- Pacific Grove
- Seaside
California- Coupeville
Washington
United States