Calliostoma zizyphinum, Ophiocomina nigra, Echinus esculentus. Site: Gavney Shoals, Copeland Sound
 Calliostoma zizyphinum, Ophiocomina nigra, Echinus esculentus. Event number: 19850710/03. Site: Gavney Shoals, Copeland Sound. 1985-07-10. Photograph © Ulster Museum. (10/16) 
 Ulster Museum (2026). Photograph of Calliostoma zizyphinum, Ophiocomina nigra, Echinus esculentus. Site: Gavney Shoals, Copeland Sound. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_11206.jpg. Accessed on 2026-11-04