Sagartia undata. Site: Quoile Estuary, Strangford Lough
 Sagartia undata. Event number: 19800610/01. Site: Quoile Estuary, Strangford Lough. 1980-06-10. Photograph © Ulster Museum. (2/22) 
 Ulster Museum (2026). Photograph of Sagartia undata. Site: Quoile Estuary, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1235.jpg. Accessed on 2026-11-04