Polybius holsatus. Site: Carrickfergus Bank, Belfast Lough
 Polybius holsatus. Event number: 19840515/05. Site: Carrickfergus Bank, Belfast Lough. 1984-05-15. Photograph © Christine Howson. (12/16) 
 Christine Howson (2026). Photograph of Polybius holsatus. Site: Carrickfergus Bank, Belfast Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_6063.jpg. Accessed on 2026-11-04