image: Testudinalia testudinalis. With small gastropods <i>Lacuna</i> sp. Saltstraumen, Norway.

Testudinalia testudinalis (O. F. Müller, 1776)
With small gastropods Lacuna sp. Saltstraumen, Norway. Photograph © Bernard Picton

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 Bernard Picton (2026). Photograph of Testudinalia testudinalis. (O. F. Müller, 1776). [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/photo.php?item=_b191520. Accessed on 2026-11-03