Polymastia boletiformis. Site: Ruecallan,  Rathlin Island
 Polymastia boletiformis. Event number: 20210515/02. Site: Ruecallan, Rathlin Island. 2021-05-15. Photograph © Bernard Picton. (31/46) 
 Bernard Picton (2026). Photograph of Polymastia boletiformis. Site: Ruecallan, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=_b206415.jpg. Accessed on 2026-11-04