Haliclona viscosa, Alcyonium digitatum. Site: E of Black Rock, Skerries, Portrush
 Haliclona viscosa, Alcyonium digitatum. Event number: 19820809/02. Site: E of Black Rock, Skerries, Portrush. 1982-08-09. Photograph © David Connor. (4/7) 
 David Connor (2026). Photograph of Haliclona viscosa, Alcyonium digitatum. Site: E of Black Rock, Skerries, Portrush. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_0693.jpg. Accessed on 2026-11-04