Plocamium cartilagineum. Site: Altachuile Bay, Rathlin Island
 Plocamium cartilagineum. Event number: 19850828/03. Site: Altachuile Bay, Rathlin Island. 1985-08-28. Photograph © Christine Howson. (2/10) 
 Christine Howson (2026). Photograph of Plocamium cartilagineum. Site: Altachuile Bay, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_12583.jpg. Accessed on 2026-11-04