Antedon bifida, Didemnidae</i> sp.<i>. Site: E of Roe Island, Strangford Lough
 Antedon bifida, Didemnidae sp.. Event number: 19830801/02. Site: E of Roe Island, Strangford Lough. 1983-08-01. Photograph © Bernard Picton. (5/7) 
 Bernard Picton (2026). Photograph of Antedon bifida, Didemnidae sp.. Site: E of Roe Island, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_2615.jpg. Accessed on 2026-11-04