Plocamium cartilagineum. Site: Church Bay, Rathlin Island
 Plocamium cartilagineum. Event number: 19850703/03. Site: Church Bay, Rathlin Island. 1985-07-03. Photograph © Ulster Museum. (5/15) 
 Ulster Museum (2026). Photograph of Plocamium cartilagineum. Site: Church Bay, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_10702.jpg. Accessed on 2026-11-04