Clavelina lepadiformis, Trivia monacha, Botryllus</i> sp.<i>. Site: N of Main Otter Rock, Skerries, Portrush 
 Clavelina lepadiformis, Trivia monacha, Botryllus sp.. Event number: 19790618/03. Site: N of Main Otter Rock, Skerries, Portrush. 1979-06-18. Photograph © Ulster Museum. (12/12) 
 Ulster Museum (2026). Photograph of Clavelina lepadiformis, Trivia monacha, Botryllus sp.. Site: N of Main Otter Rock, Skerries, Portrush. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1078.jpg. Accessed on 2026-11-04