Alcyonidium diaphanum. Site: E of Red Castle Lough Foyle 
 Alcyonidium diaphanum. Event number: 19820811/01. Site: E of Red Castle Lough Foyle. 1982-08-11. Photograph © David Connor. (5/5) 
 David Connor (2026). Photograph of Alcyonidium diaphanum. Site: E of Red Castle Lough Foyle. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_0721.jpg. Accessed on 2026-11-04