Echinocardium cordatum. Site: White Cliffs,  Rathlin Island
 Echinocardium cordatum. Event number: 20190513/01. Site: White Cliffs, Rathlin Island. 2019-05-13. Photograph © Bernard Picton. (52/54) 
 Bernard Picton (2026). Photograph of Echinocardium cordatum. Site: White Cliffs, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=_b197119.jpg. Accessed on 2026-11-04