Haliclona viscosa, Alcyonium digitatum. Site: Russells Rock, Maidens
 Haliclona viscosa, Alcyonium digitatum. Event number: 19850730/02. Site: Russells Rock, Maidens. 1985-07-30. Photograph © David Connor. (5/14) 
 David Connor (2026). Photograph of Haliclona viscosa, Alcyonium digitatum. Site: Russells Rock, Maidens. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_11857.jpg. Accessed on 2026-11-04