Antedon petasus, Delesseria sanguinea. Site: Black Head, Rathlin Island
 Antedon petasus, Delesseria sanguinea. Event number: 19850904/01. Site: Black Head, Rathlin Island. 1985-09-04. Photograph © Christine Howson. (2/17) 
 Christine Howson (2026). Photograph of Antedon petasus, Delesseria sanguinea. Site: Black Head, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_12775.jpg. Accessed on 2026-11-04