Alcyonidium diaphanum. Site: S of Skullmartin, Ballywalter
 Alcyonidium diaphanum. Event number: 19840801/04. Site: S of Skullmartin, Ballywalter. 1984-08-01. Photograph © Christine Howson. (5/9) 
 Christine Howson (2026). Photograph of Alcyonidium diaphanum. Site: S of Skullmartin, Ballywalter. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_8038.jpg. Accessed on 2026-11-04