Porella compressa. Site: Picton Reef, Rathlin Island
 Porella compressa. Event number: 20240524/01. Site: Picton Reef, Rathlin Island. 2024-05-24. Photograph © Libby Keatley. (16/28) 
 Libby Keatley (2026). Photograph of Porella compressa. Site: Picton Reef, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=p5240211.jpg. Accessed on 2026-11-03