Tethya citrina, Polymastia boletiformis. Site: White Cliffs,  Rathlin Island
 Tethya citrina, Polymastia boletiformis. Event number: 20190514/01. Site: White Cliffs, Rathlin Island. 2019-05-14. Photograph © Bernard Picton. (11/45) 
 Bernard Picton (2026). Photograph of Tethya citrina, Polymastia boletiformis. Site: White Cliffs, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=_b197226.jpg. Accessed on 2026-11-04