Halopteris catharina. Site: N of West Maiden, The Maidens
 Halopteris catharina. Event number: 20240801/01. Site: N of West Maiden, The Maidens. 2024-08-01. Photograph © Libby Keatley. (7/47) 
 Libby Keatley (2026). Photograph of Halopteris catharina. Site: N of West Maiden, The Maidens. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=p8010017.jpg. Accessed on 2026-11-03