Echinocardium cordatum. Site: S of Killowen Bank, Carlingford Lough 
 Echinocardium cordatum. Event number: 19830720/05. Site: S of Killowen Bank, Carlingford Lough. 1983-07-20. Photograph © Christine Howson. (3/3) 
 Christine Howson (2026). Photograph of Echinocardium cordatum. Site: S of Killowen Bank, Carlingford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_2516.jpg. Accessed on 2026-11-04