Metridium senile. Site: Carrickfergus Bank, Belfast Lough
 Metridium senile. Event number: 19840515/05. Site: Carrickfergus Bank, Belfast Lough. 1984-05-15. Photograph © Christine Howson. (9/16) 
 Christine Howson (2026). Photograph of Metridium senile. Site: Carrickfergus Bank, Belfast Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_6054.jpg. Accessed on 2026-11-04