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