Flustra foliacea. Site: Skullmartin Rock, Ballywalter
 Flustra foliacea. Event number: 19820917/01. Site: Skullmartin Rock, Ballywalter. 1982-09-17. Photograph © Bernard Picton. (4/13) 
 Bernard Picton (2026). Photograph of Flustra foliacea. Site: Skullmartin Rock, Ballywalter. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_0976.jpg. Accessed on 2026-11-04