Polybius depurator. Site: Ballyhenry Bay, Strangford Lough
 Polybius depurator. Event number: 19820506/03. Site: Ballyhenry Bay, Strangford Lough. 1982-05-06. Photograph © Bernard Picton. (10/29) 
 Bernard Picton (2026). Photograph of Polybius depurator. Site: Ballyhenry Bay, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_0024.jpg. Accessed on 2026-11-04