Polymastia boletiformis, Crossaster papposus. Site: Church Bay, Rathlin Island
 Polymastia boletiformis, Crossaster papposus. Event number: 19850627/02. Site: Church Bay, Rathlin Island. 1985-06-27. Photograph © Ulster Museum. (2/18) 
 Ulster Museum (2026). Photograph of Polymastia boletiformis, Crossaster papposus. Site: Church Bay, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_10339.jpg. Accessed on 2026-11-04