Cylista elegans, Antedon bifida. Site: Bird Island Passage, Strangford Lough
 Cylista elegans, Antedon bifida. Event number: 19830804/01. Site: Bird Island Passage, Strangford Lough. 1983-08-04. Photograph © Christine Howson. (2/4) 
 Christine Howson (2026). Photograph of Cylista elegans, Antedon bifida. Site: Bird Island Passage, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_2715.jpg. Accessed on 2026-11-04