Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov.
Dendronotus nordenskioeldi sp. nov. Figs 1–3, 5–7 ZooBank: http:// urn:lsid:zoobank.org:act: 9FB63088-BF8A-4990-B292-7E26DEA0FDCF Etymology . In honour of Baron Nils Adolf Erik Nordenskiöld, outstanding Arctic explorer, geologist, and mineralogist. The Laptev Sea had been originally named “Nordenski...
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Zenodo
2020
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Online Access: | https://dx.doi.org/10.5281/zenodo.4623952 https://zenodo.org/record/4623952 |
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ftdatacite:10.5281/zenodo.4623952 |
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record_format |
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institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Nudibranchia Dendronotidae Dendronotus Dendronotus nordenskioeldi |
spellingShingle |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Nudibranchia Dendronotidae Dendronotus Dendronotus nordenskioeldi Korshunova, Tatiana Bakken, Torkild GrØtan, Viktor V. Johnson, Kjetil B. Lundin, Kennet Martynov, Alexander Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Nudibranchia Dendronotidae Dendronotus Dendronotus nordenskioeldi |
description |
Dendronotus nordenskioeldi sp. nov. Figs 1–3, 5–7 ZooBank: http:// urn:lsid:zoobank.org:act: 9FB63088-BF8A-4990-B292-7E26DEA0FDCF Etymology . In honour of Baron Nils Adolf Erik Nordenskiöld, outstanding Arctic explorer, geologist, and mineralogist. The Laptev Sea had been originally named “Nordenskiöld Sea”, after this Arctic explorer. Type locality . Laptev Sea. Type material . Holotype. ZMMU Op-665. Arctic region, Laptev Sea, sta. 100, 69 m depth, collector Olga Zimina. Description . Body relatively narrow, preserved holotype 19 mm length (fig. 5). Fiveto six main branched appendages on oral veil. Five appendages on rhinophoral stalks; 12–14 rhinophoral lamellae. Lateral papilla on rhinophoral sheath present. Five pairs of dorsolateral appendages. Circa 20 lip papillae. Dorsolateral appendages with relatively short primary stalk, moderately branched secondary branchesandtertiarybranches (fig. 5A, B). Basal colour is semitranslucent white. No additional pigment. Dorsal processes of jaws inclined posteriorly at approximately 53° to the longitudinal axis of the jaw body and 0.42 of its length (fig. 5D). Masticatory border of jaw with fine denticles (fig. 5E). Radular formula: 43 × 3– 11.1.11 –3. Central (rachidian) tooth bears very weak denticulation that are difficult to separate into individual denticles (up to 20 and more variously varied denticles at least) (fig. 5F, G). Denticles without deep furrows.Lateralteeth elongate, slightly curved, bearing up to seven denticles (+ 2–3 reduced denticles may present) (fig. 4F–H). Ampulla thickened, kidney-shaped. Prostate discoidal, consisting of up to 20 alveolar glands. Distal part of vas deferens moderate in length, transitioning to long, thick, curved copulatory organ. Bursa copulatrix large, distinctly elongated, with seminal receptaculum placed distally. Distribution . So far known only from the Laptev Sea. Remarks. Externally, Dendronotus nordenskioeldi sp. nov. resembles white forms of D. lacteus but differs by the absence of a distinct reticulation and peculiar ribs on the central teeth, which is a common characteristic of D. lacteus (Korshunova et al., 2017a). According to the molecular differences, a minimal intergroup distance for the COI gene (7.9%) is found between D. nordenskioeldi sp. nov and D. europaeus . The mean intergroup distances between D. nordenskioeldi sp. nov. and D. rufus, D. lacteus, and D. kamchaticus are 8.3%, 8.3%, and 8.8% respectively. Amaximal intergroup distance (15.0%) is found between D. nordenskioeldi sp. nov and D. patricki (Appendix, table A2). Synopsis of the previously described valid taxa of the family Dendronotidae : Published as part of Korshunova, Tatiana, Bakken, Torkild, GrØtan, Viktor V., Johnson, Kjetil B., Lundin, Kennet & Martynov, Alexander, 2021, A synoptic review of the family Dendronotidae (Mollusca: Nudibranchia): a multilevel organismal diversity approach, pp. 93-153 in Contributions To Zoology 90 (1) on pages 104-106, DOI: 10.1163/18759866-BJA10014, http://zenodo.org/record/4623915 : {"references": ["Korshunova, T., Martynov, A., Bakken, T., Evertsen, J., Fletcher, K., Mudianta, I., Saito, H., Lundin, K., Schrodl, M. & Picton, B. (2017 a) Polyphyly of the traditional family Flabellinidae affects a major group of Nudibranchia: aeolidacean taxonomic reassessment with descriptions of several new families, genera, and species (Mollusca, Gastropoda). ZooKeys, 717, 1 - 139."]} |
format |
Text |
author |
Korshunova, Tatiana Bakken, Torkild GrØtan, Viktor V. Johnson, Kjetil B. Lundin, Kennet Martynov, Alexander |
author_facet |
Korshunova, Tatiana Bakken, Torkild GrØtan, Viktor V. Johnson, Kjetil B. Lundin, Kennet Martynov, Alexander |
author_sort |
Korshunova, Tatiana |
title |
Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov. |
title_short |
Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov. |
title_full |
Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov. |
title_fullStr |
Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov. |
title_full_unstemmed |
Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov. |
title_sort |
dendronotus nordenskioeldi korshunova & bakken & grøtan & johnson & lundin & martynov 2021, sp. nov. |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://dx.doi.org/10.5281/zenodo.4623952 https://zenodo.org/record/4623952 |
long_lat |
ENVELOPE(48.017,48.017,-68.067,-68.067) ENVELOPE(13.400,13.400,65.585,65.585) ENVELOPE(9.917,9.917,62.836,62.836) |
geographic |
Arctic Laptev Sea Nils Bakken Grøtan |
geographic_facet |
Arctic Laptev Sea Nils Bakken Grøtan |
genre |
Arctic laptev Laptev Sea |
genre_facet |
Arctic laptev Laptev Sea |
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Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
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https://doi.org/10.5281/zenodo.4623952 https://doi.org/10.1163/18759866-bja10014 https://doi.org/10.5281/zenodo.4623918 https://doi.org/10.5281/zenodo.4623920 https://doi.org/10.5281/zenodo.4623922 https://doi.org/10.5281/zenodo.4623926 https: |
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ftdatacite:10.5281/zenodo.4623952 2023-05-15T15:02:46+02:00 Dendronotus nordenskioeldi Korshunova & Bakken & GrØtan & Johnson & Lundin & Martynov 2021, sp. nov. Korshunova, Tatiana Bakken, Torkild GrØtan, Viktor V. Johnson, Kjetil B. Lundin, Kennet Martynov, Alexander 2020 https://dx.doi.org/10.5281/zenodo.4623952 https://zenodo.org/record/4623952 unknown Zenodo http://zenodo.org/record/4623915 http://publication.plazi.org/id/FF916F160249FF822334FFFDCA16110F https://zenodo.org/communities/biosyslit https://dx.doi.org/10.1163/18759866-bja10014 http://zenodo.org/record/4623915 http://publication.plazi.org/id/FF916F160249FF822334FFFDCA16110F https://dx.doi.org/10.5281/zenodo.4623918 https://dx.doi.org/10.5281/zenodo.4623920 https://dx.doi.org/10.5281/zenodo.4623922 https://dx.doi.org/10.5281/zenodo.4623926 https://dx.doi.org/10.5281/zenodo.4623928 https://dx.doi.org/10.5281/zenodo.4623930 https://dx.doi.org/10.5281/zenodo.4623951 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Mollusca Gastropoda Nudibranchia Dendronotidae Dendronotus Dendronotus nordenskioeldi Text Taxonomic treatment article-journal ScholarlyArticle 2020 ftdatacite https://doi.org/10.5281/zenodo.4623952 https://doi.org/10.1163/18759866-bja10014 https://doi.org/10.5281/zenodo.4623918 https://doi.org/10.5281/zenodo.4623920 https://doi.org/10.5281/zenodo.4623922 https://doi.org/10.5281/zenodo.4623926 https: 2021-11-05T12:55:41Z Dendronotus nordenskioeldi sp. nov. Figs 1–3, 5–7 ZooBank: http:// urn:lsid:zoobank.org:act: 9FB63088-BF8A-4990-B292-7E26DEA0FDCF Etymology . In honour of Baron Nils Adolf Erik Nordenskiöld, outstanding Arctic explorer, geologist, and mineralogist. The Laptev Sea had been originally named “Nordenskiöld Sea”, after this Arctic explorer. Type locality . Laptev Sea. Type material . Holotype. ZMMU Op-665. Arctic region, Laptev Sea, sta. 100, 69 m depth, collector Olga Zimina. Description . Body relatively narrow, preserved holotype 19 mm length (fig. 5). Fiveto six main branched appendages on oral veil. Five appendages on rhinophoral stalks; 12–14 rhinophoral lamellae. Lateral papilla on rhinophoral sheath present. Five pairs of dorsolateral appendages. Circa 20 lip papillae. Dorsolateral appendages with relatively short primary stalk, moderately branched secondary branchesandtertiarybranches (fig. 5A, B). Basal colour is semitranslucent white. No additional pigment. Dorsal processes of jaws inclined posteriorly at approximately 53° to the longitudinal axis of the jaw body and 0.42 of its length (fig. 5D). Masticatory border of jaw with fine denticles (fig. 5E). Radular formula: 43 × 3– 11.1.11 –3. Central (rachidian) tooth bears very weak denticulation that are difficult to separate into individual denticles (up to 20 and more variously varied denticles at least) (fig. 5F, G). Denticles without deep furrows.Lateralteeth elongate, slightly curved, bearing up to seven denticles (+ 2–3 reduced denticles may present) (fig. 4F–H). Ampulla thickened, kidney-shaped. Prostate discoidal, consisting of up to 20 alveolar glands. Distal part of vas deferens moderate in length, transitioning to long, thick, curved copulatory organ. Bursa copulatrix large, distinctly elongated, with seminal receptaculum placed distally. Distribution . So far known only from the Laptev Sea. Remarks. Externally, Dendronotus nordenskioeldi sp. nov. resembles white forms of D. lacteus but differs by the absence of a distinct reticulation and peculiar ribs on the central teeth, which is a common characteristic of D. lacteus (Korshunova et al., 2017a). According to the molecular differences, a minimal intergroup distance for the COI gene (7.9%) is found between D. nordenskioeldi sp. nov and D. europaeus . The mean intergroup distances between D. nordenskioeldi sp. nov. and D. rufus, D. lacteus, and D. kamchaticus are 8.3%, 8.3%, and 8.8% respectively. Amaximal intergroup distance (15.0%) is found between D. nordenskioeldi sp. nov and D. patricki (Appendix, table A2). Synopsis of the previously described valid taxa of the family Dendronotidae : Published as part of Korshunova, Tatiana, Bakken, Torkild, GrØtan, Viktor V., Johnson, Kjetil B., Lundin, Kennet & Martynov, Alexander, 2021, A synoptic review of the family Dendronotidae (Mollusca: Nudibranchia): a multilevel organismal diversity approach, pp. 93-153 in Contributions To Zoology 90 (1) on pages 104-106, DOI: 10.1163/18759866-BJA10014, http://zenodo.org/record/4623915 : {"references": ["Korshunova, T., Martynov, A., Bakken, T., Evertsen, J., Fletcher, K., Mudianta, I., Saito, H., Lundin, K., Schrodl, M. & Picton, B. (2017 a) Polyphyly of the traditional family Flabellinidae affects a major group of Nudibranchia: aeolidacean taxonomic reassessment with descriptions of several new families, genera, and species (Mollusca, Gastropoda). ZooKeys, 717, 1 - 139."]} Text Arctic laptev Laptev Sea DataCite Metadata Store (German National Library of Science and Technology) Arctic Laptev Sea Nils ENVELOPE(48.017,48.017,-68.067,-68.067) Bakken ENVELOPE(13.400,13.400,65.585,65.585) Grøtan ENVELOPE(9.917,9.917,62.836,62.836) |