Delesseria sanguinea. Site: Arkill Bay, Rathlin Island
 Delesseria sanguinea. Event number: 19850626/03. Site: Arkill Bay, Rathlin Island. 1985-06-26. Photograph © Ulster Museum. (12/13) 
 Ulster Museum (2026). Photograph of Delesseria sanguinea. Site: Arkill Bay, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_10201.jpg. Accessed on 2026-11-04