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Ekimova, I.; Korshunova, T.; Schepetov, D.; Neretina, T.; Sanamyan, N.; Martynov, A. (2015). Integrative systematics of northern and Arctic nudibranchs of the genus Dendronotus (Mollusca, Gastropoda), with descriptions of three new species. Zoological Journal of the Linnean Society. 173(4): 841-886.
197302
10.1111/zoj.12214 [view]
Ekimova, I.; Korshunova, T.; Schepetov, D.; Neretina, T.; Sanamyan, N.; Martynov, A.
2015
Integrative systematics of northern and Arctic nudibranchs of the genus <i>Dendronotus</i> (Mollusca, Gastropoda), with descriptions of three new species
Zoological Journal of the Linnean Society
173(4): 841-886
Publication
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The taxonomy of common northern nudibranch molluscs of the genus Dendronotus in the vast cold regions of Eurasia remains largely unknown. Abundant material collected in many localities from the Barents Sea, via the Arctic region, to the north-west Pacific was analysed for the first time. An integrated approach combining morphological and ontogenetic data with molecular four-gene (COI, 16S, H3, and 28S) analysis reveals seven species, including three previously undescribed. Dendronotus frondosus (Ascanius, 1774) and Dendronotus dalli Bergh, 1879 were commonly considered as amphiboreal species; however, according to this study they are restricted to the North Atlantic and the North Pacific, respectively. In the north-west Pacific two new species were discovered, Dendronotus kamchaticus sp. nov. and Dendronotus kalikal sp. nov., that are externally similar to D. frondosus, but that show significant distance according to molecular analysis and are considerably different in radular morphology. In the North Atlantic a new species Dendronotus niveus sp. nov., sibling to North Pacific D. dalli, is revealed. The separate status of North Atlantic Dendronotus lacteus (Thompson, 1840) is confirmed, including considerable range extension. The essential similarity of early ontogenetic stages of radular development common for species with disparate adult radular morphology (such as D. frondosus and D. dalli) is shown, and its importance for taxonomy is discussed.
Campaspe Bergh, 1863 accepted as Dendronotus Alder & Hancock, 1845 (source of synonymy)
Campaspe major Bergh, 1886 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Campaspe pusilla Bergh, 1863 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Dendronotus Alder & Hancock, 1845 (additional source)
Dendronotus arborescens var. aurantiaca Friele, 1879 accepted as Dendronotus lacteus (W. Thompson, 1840) (source of synonymy)
Dendronotus dalli Bergh, 1879 (basis of record)
Dendronotus frondosus (Ascanius, 1774) (additional source)
Dendronotus kalikal Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015 (original description)
Dendronotus kamchaticus Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015 (original description)
Dendronotus lacteus (W. Thompson, 1840) (basis of record)
Dendronotus luteolus Lafont, 1871 accepted as Dendronotus lacteus (W. Thompson, 1840) (source of synonymy)
Dendronotus niveus Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015 accepted as Dendronotus elegans A. E. Verrill, 1880 (original description)
Dendronotus robustus A. E. Verrill, 1870 (basis of record)
Doris arborescens O. F. Müller, 1776 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Doris cervina Gmelin, 1791 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Tritonia ascanii Møller, 1842 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Tritonia felina Alder & Hancock, 1842 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Tritonia pulchella Alder & Hancock, 1842 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Campaspe major Bergh, 1886 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Campaspe pusilla Bergh, 1863 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Dendronotus Alder & Hancock, 1845 (additional source)
Dendronotus arborescens var. aurantiaca Friele, 1879 accepted as Dendronotus lacteus (W. Thompson, 1840) (source of synonymy)
Dendronotus dalli Bergh, 1879 (basis of record)
Dendronotus frondosus (Ascanius, 1774) (additional source)
Dendronotus kalikal Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015 (original description)
Dendronotus kamchaticus Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015 (original description)
Dendronotus lacteus (W. Thompson, 1840) (basis of record)
Dendronotus luteolus Lafont, 1871 accepted as Dendronotus lacteus (W. Thompson, 1840) (source of synonymy)
Dendronotus niveus Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015 accepted as Dendronotus elegans A. E. Verrill, 1880 (original description)
Dendronotus robustus A. E. Verrill, 1870 (basis of record)
Doris arborescens O. F. Müller, 1776 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Doris cervina Gmelin, 1791 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Tritonia ascanii Møller, 1842 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Tritonia felina Alder & Hancock, 1842 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Tritonia pulchella Alder & Hancock, 1842 accepted as Dendronotus frondosus (Ascanius, 1774) (source of synonymy)
Kamchatka Shelf and Coast for Dendronotus kalikal Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015
White Sea for Dendronotus niveus Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015
White Sea for Dendronotus niveus Ekimova, Korshunova, Schepetov, Neretina, Sanamyan & Martynov, 2015
