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| Calliostoma zizyphinum. Event number: 19840801/05. Site: Skullmartin, Ballywalter. 1984-08-01. Photograph © David Connor. (3/8) |
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| David Connor (2026). Photograph of Calliostoma zizyphinum. Site: Skullmartin, Ballywalter. [In] Marine Biodiversity Data Portal - NI. https://habitas.org/mbdp/sitephoto.php?item=niss_8071.jpg. Accessed on 2026-11-04 |