Alcyonium digitatum, Caryophyllia smithii, Flustra foliacea, Clavelina lepadiformis. Site: 300m NE of Large Skerrie, Skerries, Portrush
 Alcyonium digitatum, Caryophyllia smithii, Flustra foliacea, Clavelina lepadiformis. Event number: 19790628/02. Site: 300m NE of Large Skerrie, Skerries, Portrush. 1979-06-28. Photograph © Ulster Museum. (21/22) 
 Ulster Museum (2026). Photograph of Alcyonium digitatum, Caryophyllia smithii, Flustra foliacea, Clavelina lepadiformis. Site: 300m NE of Large Skerrie, Skerries, Portrush. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1166.jpg. Accessed on 2026-11-04