Plocamium cartilagineum. Site: The Gobbins, Island Magee
 Plocamium cartilagineum. Event number: 19850731/02. Site: The Gobbins, Island Magee. 1985-07-31. Photograph © Ulster Museum. (7/11) 
 Ulster Museum (2026). Photograph of Plocamium cartilagineum. Site: The Gobbins, Island Magee. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_11956.jpg. Accessed on 2026-11-04