Polybius depurator. Site: Ballyhenry Bay,  Strangford Lough
 Polybius depurator. Event number: 20210816/01. Site: Ballyhenry Bay, Strangford Lough. 2021-08-16. Photograph © Bernard Picton. (9/36) 
 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=_b217083.jpg. Accessed on 2026-11-04