Halichondria bowerbanki, Ophiothrix fragilis. Site: NE of Limestone Rock, Strangford Lough
 Halichondria bowerbanki, Ophiothrix fragilis. Event number: 19800626/03. Site: NE of Limestone Rock, Strangford Lough. 1980-06-26. Photograph © Ulster Museum. (2/9) 
 Ulster Museum (2026). Photograph of Halichondria bowerbanki, Ophiothrix fragilis. Site: NE of Limestone Rock, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1483.jpg. Accessed on 2026-11-04