Colus (Colus) gracilis. Site: Church Bay, Rathlin Island
 Colus (Colus) gracilis. Event number: 20240522/02. Site: Church Bay, Rathlin Island. 2024-05-22. Photograph © Erling Svensen. (28/124) 
 Erling Svensen (2026). Photograph of Colus (Colus) gracilis. Site: Church Bay, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=es2024_340.jpg. Accessed on 2026-11-03