Echinus esculentus. Site: E Maiden, Maidens
 Echinus esculentus. Event number: 19850731/06. Site: E Maiden, Maidens. 1985-07-31. Photograph © Ulster Museum. (1/17) 
 Ulster Museum (2026). Photograph of Echinus esculentus. Site: E Maiden, Maidens. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_12040.jpg. Accessed on 2026-11-04