Tethya citrina, Ophiothrix fragilis. Site: N of E end of Long Sheelagh, Strangford Lough
 Tethya citrina, Ophiothrix fragilis. Event number: 19800626/02. Site: N of E end of Long Sheelagh, Strangford Lough. 1980-06-26. Photograph © Ulster Museum. (3/17) 
 Ulster Museum (2026). Photograph of Tethya citrina, Ophiothrix fragilis. Site: N of E end of Long Sheelagh, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1467.jpg. Accessed on 2026-11-04