| Summary: | FIGURE 8 Cuthonella concinna concinna (Alder & Hancock, 1843). A, living specimen GNM Gastropoda 8866, Sweden, 9.5 mm (preserved length), dorsal view. B, living specimen from UK, 3.5 mm (preserved length), laterodorsal view. C, D, living specimen from Finnmark, Norway, 12.5 mm (live specimen), dorsal and ventral views respectively. E, F, lectotype of "Cuthona distans", ZMO D 25946, Finnmark, Norway, 3 mm (preserved length), dorsal and ventral views respectively. G, living specimen from the Barents Sea, Russia, 9 mm (preserved length), dorsal view. H, I, living specimen from the White Sea (previously identified as "C. marisalbi"), Russia, ZMMU Op-523, 8 mm (preserved length), dorsal and ventral views respectively. J, same, lateral view of fixed specimen. K, jaw, GNM 8866, Sweden (SEM). L, same, details. M, jaw, Finnmark, Norway (SEM). N, same, details. O, anterior part of the radula, Sweden (SEM). P, posterior part of the radula, Sweden (SEM). Q, anterior part of the radula, Norway (SEM). R, posterior part of the radula, Norway (SEM). Scale bars: K, M, 200 µm; L, N, O, P, 20 µm; Q, R, 50 µm; Photos: A, Klas Malmberg, B, Bernard Picton, C–I, Tatiana Korshunova Downloaded, J– from R, Brill Alexander.com 12/12 Martynov/2023. 04:16:22PM via Open Access. This is an open access article distributed under the terms of the CC-BY 4.0 license. https://creativecommons.org/licenses/by/4.0/ Published as part of Korshunova, Tatiana A., Sanamyan, Nadezhda P., Sanamyan, Karen E., Bakken, Torkild, Lundin, Kennet, Fletcher, Karin & Martynov, Alexander V., 2021, Biodiversity hotspot in cold waters: a review of the genus Cuthonella with descriptions of seven new species (Mollusca, Nudibranchia), pp. 216-283 in Contributions to Zoology 90 (2) on page 234, DOI:10.1163/18759866-BJA10017, http://zenodo.org/record/10661858
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