Polymastia boletiformis. Site: W Kinbane Head, Ballycastle
 Polymastia boletiformis. Event number: 19850605/01. Site: W Kinbane Head, Ballycastle. 1985-06-05. Photograph © Bernard Picton. (3/9) 
 Bernard Picton (2026). Photograph of Polymastia boletiformis. Site: W Kinbane Head, Ballycastle. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_9643.jpg. Accessed on 2026-11-04