Antedon bifida, Thyone fusus. Site: Bird Island Passage, Strangford Lough
 Antedon bifida, Thyone fusus. Event number: 19830804/01. Site: Bird Island Passage, Strangford Lough. 1983-08-04. Photograph © Christine Howson. (3/4) 
 Christine Howson (2026). Photograph of Antedon bifida, Thyone fusus. Site: Bird Island Passage, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_2716.jpg. Accessed on 2026-11-04