Actinothoe sphyrodeta. Site: Shamrock Pinnacle, Rathlin Island
 Actinothoe sphyrodeta. Event number: 19840816/02. Site: Shamrock Pinnacle, Rathlin Island. 1984-08-16. Photograph © Ulster Museum. (2/6) 
 Ulster Museum (2026). Photograph of Actinothoe sphyrodeta. Site: Shamrock Pinnacle, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_9121.jpg. Accessed on 2026-11-04