Halopteris catharina. Site: SE Altacarry Head, Rathlin Island
 Halopteris catharina. Event number: 19850628/02. Site: SE Altacarry Head, Rathlin Island. 1985-06-28. Photograph © David Connor. (4/9) 
 David Connor (2026). Photograph of Halopteris catharina. Site: SE Altacarry Head, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_10468.jpg. Accessed on 2026-11-04