Echinus esculentus, Ciona intestinalis. Site: SE of Abbey Rock, Strangford Lough
 Echinus esculentus, Ciona intestinalis. Event number: 19830601/03. Site: SE of Abbey Rock, Strangford Lough. 1983-06-01. Photograph © Christine Howson. (7/15) 
 Christine Howson (2026). Photograph of Echinus esculentus, Ciona intestinalis. Site: SE of Abbey Rock, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1964.jpg. Accessed on 2026-11-04