Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean Sea
Two new species of Desmoscolex (Desmoscolex) Claparède, 1863 from Cassidagne Canyon (deep-sea Mediterranean), namely Desmoscolex (Desmoscolex) nibelungus sp. nov. and Desmoscolex (Desmoscolex) valkyria sp. nov. are described. Desmoscolex (D.) nibelungus has 17 main rings and the typical desmoscolec...
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Consortium of European Natural History Museums
2025-07-01
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| Series: | European Journal of Taxonomy |
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| Online Access: | https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/2969 |
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| author | Marta García-Cobo Alberto González-Casarrrubios Nuria Sánchez |
| author_facet | Marta García-Cobo Alberto González-Casarrrubios Nuria Sánchez |
| author_sort | Marta García-Cobo |
| collection | DOAJ |
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Two new species of Desmoscolex (Desmoscolex) Claparède, 1863 from Cassidagne Canyon (deep-sea Mediterranean), namely Desmoscolex (Desmoscolex) nibelungus sp. nov. and Desmoscolex (Desmoscolex) valkyria sp. nov. are described. Desmoscolex (D.) nibelungus has 17 main rings and the typical desmoscolecid setal pattern. The most evident features to distinguish it from the rest of D. (Desmoscolex) with these characteristics are the protuding lip region not covered with concretion material, the cephalic region that apparently lacks setae and the beak-shaped posterior-most main ring. On the other hand, D. (D.) valkyria belongs to a group of nematodes with more than 18 main rings. This new species is mainly characterized by the number of rings (22–24), the vesicular amphideal fovea, a pair of subdorsal and a pair of subventral setae both on the penultimate main ring and a long spinneret of the terminal main ring. This is the first meiofauna species described from the Cassidaigne Canyon. With the description of these two new species of nematode, the number of described species of Desmoscolex (Desmoscolex) is now 106, with 47 species occurring in deep-sea environments and 10 species described from the Mediterranean Sea.
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| format | Article |
| id | doaj-art-5e4b816a335f439c9eaba198ee80cb95 |
| institution | DOAJ |
| issn | 2118-9773 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Consortium of European Natural History Museums |
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| series | European Journal of Taxonomy |
| spelling | doaj-art-5e4b816a335f439c9eaba198ee80cb952025-08-20T03:15:35ZengConsortium of European Natural History MuseumsEuropean Journal of Taxonomy2118-97732025-07-011004110.5852/ejt.2025.1004.2969Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean SeaMarta García-Cobo0Alberto González-Casarrrubios1Nuria Sánchez2Universidad Complutense de Madrid, Faculty of Biological Sciences, Department of Biodiversity, Ecology and Evolution. C / José Antonio Novais 12. 28040 Madrid, SpainUniversidad Complutense de Madrid, Faculty of Biological Sciences, Department of Biodiversity, Ecology and Evolution. C / José Antonio Novais 12. 28040 Madrid, SpainUniversidad Complutense de Madrid, Faculty of Biological Sciences, Department of Biodiversity, Ecology and Evolution. C / José Antonio Novais 12. 28040 Madrid, Spain Two new species of Desmoscolex (Desmoscolex) Claparède, 1863 from Cassidagne Canyon (deep-sea Mediterranean), namely Desmoscolex (Desmoscolex) nibelungus sp. nov. and Desmoscolex (Desmoscolex) valkyria sp. nov. are described. Desmoscolex (D.) nibelungus has 17 main rings and the typical desmoscolecid setal pattern. The most evident features to distinguish it from the rest of D. (Desmoscolex) with these characteristics are the protuding lip region not covered with concretion material, the cephalic region that apparently lacks setae and the beak-shaped posterior-most main ring. On the other hand, D. (D.) valkyria belongs to a group of nematodes with more than 18 main rings. This new species is mainly characterized by the number of rings (22–24), the vesicular amphideal fovea, a pair of subdorsal and a pair of subventral setae both on the penultimate main ring and a long spinneret of the terminal main ring. This is the first meiofauna species described from the Cassidaigne Canyon. With the description of these two new species of nematode, the number of described species of Desmoscolex (Desmoscolex) is now 106, with 47 species occurring in deep-sea environments and 10 species described from the Mediterranean Sea. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/2969DesmoscolecidaNematodaCassidaigne Canyondeep-sea |
| spellingShingle | Marta García-Cobo Alberto González-Casarrrubios Nuria Sánchez Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean Sea European Journal of Taxonomy Desmoscolecida Nematoda Cassidaigne Canyon deep-sea |
| title | Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean Sea |
| title_full | Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean Sea |
| title_fullStr | Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean Sea |
| title_full_unstemmed | Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean Sea |
| title_short | Description of two new species of Desmoscolex Claparède, 1863 (Nematoda: Desmoscolecidae) from the Cassidaigne Canyon, Mediterranean Sea |
| title_sort | description of two new species of desmoscolex claparede 1863 nematoda desmoscolecidae from the cassidaigne canyon mediterranean sea |
| topic | Desmoscolecida Nematoda Cassidaigne Canyon deep-sea |
| url | https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/2969 |
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