Alcyonidium diaphanum, Clavelina lepadiformis. Site: N Black Rock, Skerries, Portrush
 Alcyonidium diaphanum, Clavelina lepadiformis. Event number: 19840703/05. Site: N Black Rock, Skerries, Portrush. 1984-07-03. Photograph © David Connor. (5/6) 
 David Connor (2026). Photograph of Alcyonidium diaphanum, Clavelina lepadiformis. Site: N Black Rock, Skerries, Portrush. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_7147.jpg. Accessed on 2026-11-04