Halopteris. . Site: W of West Maiden, The Maidens
 Halopteris. Event number: 20240801/02. Site: W of West Maiden, The Maidens. 2024-08-01. Photograph © Libby Keatley. (16/20) 
 Libby Keatley (2026). Photograph of Halopteris. . Site: W of West Maiden, The Maidens. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=p8010116.jpg. Accessed on 2026-11-03