Pachymatisma johnstonia, Dendrodoa grossularia. Site: N of West Lighthouse, Rathlin Island
 Pachymatisma johnstonia, Dendrodoa grossularia. Event number: 19850904/06. Site: N of West Lighthouse, Rathlin Island. 1985-09-04. Photograph © David Connor. (3/15) 
 David Connor (2026). Photograph of Pachymatisma johnstonia, Dendrodoa grossularia. Site: N of West Lighthouse, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_12940.jpg. Accessed on 2026-11-04