Hemimycale columella. Site: N of Long Sheelagh, Strangford Lough
 Hemimycale columella. Event number: 19800618/03. Site: N of Long Sheelagh, Strangford Lough. 1980-06-18. Photograph © Ulster Museum. (17/24) 
 Ulster Museum (2026). Photograph of Hemimycale columella. Site: N of Long Sheelagh, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1374.jpg. Accessed on 2026-11-04