Chorda filum. Site: NW of Magilligan Strand, Lough Foyle
 Chorda filum. Event number: 19830621/02. Site: NW of Magilligan Strand, Lough Foyle. 1983-06-21. Photograph © David Connor. (1/7) 
 David Connor (2026). Photograph of Chorda filum. Site: NW of Magilligan Strand, Lough Foyle. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_2318.jpg. Accessed on 2026-11-04