Heterosiphonia plumosa. Site: Runabay Head, Cushendun
 Heterosiphonia plumosa. Event number: 19840530/03. Site: Runabay Head, Cushendun. 1984-05-30. Photograph © Bernard Picton. (5/8) 
 Bernard Picton (2026). Photograph of Heterosiphonia plumosa. Site: Runabay Head, Cushendun. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_6231.jpg. Accessed on 2026-11-04