Delesseria sanguinea, Laminaria hyperborea. Site: S Side Black Rock, Skerries, Portrush
 Delesseria sanguinea, Laminaria hyperborea. Event number: 19820806/04. Site: S Side Black Rock, Skerries, Portrush. 1982-08-06. Photograph © Christine Howson. (5/7) 
 Christine Howson (2026). Photograph of Delesseria sanguinea, Laminaria hyperborea. Site: S Side Black Rock, Skerries, Portrush. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_0622.jpg. Accessed on 2026-11-04