Halopteris catharina. Site: Church Bay, Rathlin Island
 Halopteris catharina. Event number: 20240523/02. Site: Church Bay, Rathlin Island. 2024-05-23. Photograph © Bernard Picton. (80/99) 
 Bernard Picton (2026). Photograph of Halopteris catharina. Site: Church Bay, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=_b245383.jpg. Accessed on 2026-11-04