Dendronotus arcticus Korshunova

User, GBIF. Org, 2021, A synoptic review of the family Dendronotidae (Mollusca: Nudibranchia): a multilevel organismal diversity approach, Contributions to Zoology 90 (1), pp. 93-153 : 113

Dendronotus arcticus Korshunova ,

Sanamyan, Zimina, Fletcher & Martynov, 2016

Fig. 7

Dendronotus arcticus Korshunova et al., 2016a: 26–28 , Figs 1 , 3A .

large and rounded. Seminal receptaculum small placed distally at a moderately short distance from the vaginal opening. Prostate discoid with about 25–30 alveolar glands. The vas deferens is moderate in length, penis long and twisted. Body length up to 19 mm.

Distribution. Arctic – Kara Sea to Laptev Sea, Russia.

Bathymetry. 10–20 m depth, occasionally deeper.

Remarks. This recently described species is easily distinguished from its congenerics (Korshunova et al., 2016a).This is a true Arctic species that so far has been recorded only from the Laptev Sea and Kara Sea.

Figures

FIGURE 1 Phylogenetic relationships of the species of the genus Dendronotus based on COI + 16S + 28S + H3 concatenated dataset inferred by Bayesian Inference (BI). Numbers represent posterior probabilities from BI and bootstrap values for Maximum Likelihood.Some branches are collapsed at species level.Dendronotus elegans from the type region (North Atlantic) are highlighted in dark purple. Abbreviations:h – holotype; p – paratype.Summary of species delimitation results from ABGD analyses for the COI dataset is shown. Downloaded from Brill.com 12/12/2023 04:12:08PM 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/

FIGURE 3 A.Map of the Northern Hemisphere showing the distribution of D.elegans (including “D.niveus”), D.kalikal, and D.yrjargul sp. nov.The type locality of D.elegans is indicated by crossed lines. B. The haplotype networks based on cytochrome c oxidase subunit I (COI), 16S rRNA (16S), and 28S rRNA (28S) molecular data showing genetic mutations occurring within D.elegans (“D.niveus”), D. kalikal, and D.yrjargul sp. nov. specimens.Abbreviations:BeSt – Bering Strait; BS – Barents Sea; Gr – Greenland; Km – Kamchatka; KS – Kara Sea; Ku – Kuril Islands; LS – Laptev Sea; Nf – Newfoundland; NS – Norwegian Sea; WS – White Sea.Type locality of D.elegans Downloadedis marked from on Brill. the commap12/ by 12/ “x” 2023. 04:12:08PM 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/

FIGURE 7 Representaives of the genus Dendronotus (living specimens). PHOTOGRAPHS BY T. KORSHUNOVA, A. MARTYNOV, K. FLETCHER, D. MILLER, Y. FUJIWARA, K. HASEGAWA, K. SANAMYAN, N. SANAMYAN, AND O. ZIMINA Downloaded from Brill.com 12/12/2023 04:12:08PM 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/