Polymastia penicillus, Tubularia indivisa. Site: N of Highlandman Rock, Maidens
 Polymastia penicillus, Tubularia indivisa. Event number: 19830525/03. Site: N of Highlandman Rock, Maidens. 1983-05-25. Photograph © David Erwin. (9/12) 
 David Erwin (2026). Photograph of Polymastia penicillus, Tubularia indivisa. Site: N of Highlandman Rock, Maidens. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1910.jpg. Accessed on 2026-11-04