Marthasterias glacialis. Site: Allen Rock, The Maidens
 Marthasterias glacialis. Event number: 20240512/01. Site: Allen Rock, The Maidens. 2024-05-12. Photograph © Libby Keatley. (30/66) 
 Libby Keatley (2026). Photograph of Marthasterias glacialis. Site: Allen Rock, The Maidens. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=p5121045.jpg. Accessed on 2026-11-03