Pachymatisma johnstonia, Polymastia boletiformis, Axinella infundibuliformis, Iophonopsis nigricans, Caryophyllia smithii, Terebratulina retusa. Site: E of Castle Head, Rathlin Island
 Pachymatisma johnstonia, Polymastia boletiformis, Axinella infundibuliformis, Iophonopsis nigricans, Caryophyllia smithii, Terebratulina retusa. Event number: 19850625/01. Site: E of Castle Head, Rathlin Island. 1985-06-25. Photograph © Ulster Museum. (2/11) 
 Ulster Museum (2026). Photograph of Pachymatisma johnstonia, Polymastia boletiformis, Axinella infundibuliformis, Iophonopsis nigricans, Caryophyllia smithii, Terebratulina retusa. Site: E of Castle Head, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_9952.jpg. Accessed on 2026-11-04