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| Main Authors: | , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
ZooKeys
2026
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/42040979/ |
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| _version_ | 1868266056167981056 |
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| author | Huang, Mian Li, Xueqing |
| author_facet | Huang, Mian Li, Xueqing Huang, Mian Li, Xueqing |
| collection | PubMed - marine biology |
| contents | Description of two new Nematoda species of the genus Ditlevsen, 1918 (Comesomatidae, Araeolaimida, Nematoda) from the Yellow Sea, China. Huang, Mian Li, Xueqing Two new species of the genus Ditlevsen, 1918 from the subtidal zone of the Yellow Sea are described and illustrated. . is characterised by the lateral differentiation in the form of longitudinal rows of larger dots which consisting of three rows of dots in about the anterior 20% and posterior 20% of the total body length and two rows of dots in the rest portion of the body, by the multispiral amphidial fovea having three turns; slender, equal, arcuated spicules; cephalated proximal end with a short median cuticularised lamina; length 1.9-2.2 times the cloacal body diameter; gubernaculum with two geniculate curved apophyses and 14-17 papilliform precloacal supplements; and excretory pore posterior to nerve ring. . is characterised by having cephalic setae 6-7 μm long, amphidial fovea with three turns, lateral differentiation consisting of four longitudinal rows of larger dots in the pharyngeal and tail regions, three longitudinal rows of larger dots in the middle region of body, spicules slender and slightly curved, length 2.0-2.5 times the cloacal body diameter, and 18 small, pit-like precloacal supplements. An updated dichotomous key is provided for the 29 valid species of . |
| format | Artículo científico |
| id | pubmed_42040979 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | ZooKeys |
| record_format | pubmed |
| spellingShingle | Description of two new Nematoda species of the genus Ditlevsen, 1918 (Comesomatidae, Araeolaimida, Nematoda) from the Yellow Sea, China. Huang, Mian Li, Xueqing Description of two new Nematoda species of the genus Ditlevsen, 1918 (Comesomatidae, Araeolaimida, Nematoda) from the Yellow Sea, China. Huang, Mian Li, Xueqing Two new species of the genus Ditlevsen, 1918 from the subtidal zone of the Yellow Sea are described and illustrated. . is characterised by the lateral differentiation in the form of longitudinal rows of larger dots which consisting of three rows of dots in about the anterior 20% and posterior 20% of the total body length and two rows of dots in the rest portion of the body, by the multispiral amphidial fovea having three turns; slender, equal, arcuated spicules; cephalated proximal end with a short median cuticularised lamina; length 1.9-2.2 times the cloacal body diameter; gubernaculum with two geniculate curved apophyses and 14-17 papilliform precloacal supplements; and excretory pore posterior to nerve ring. . is characterised by having cephalic setae 6-7 μm long, amphidial fovea with three turns, lateral differentiation consisting of four longitudinal rows of larger dots in the pharyngeal and tail regions, three longitudinal rows of larger dots in the middle region of body, spicules slender and slightly curved, length 2.0-2.5 times the cloacal body diameter, and 18 small, pit-like precloacal supplements. An updated dichotomous key is provided for the 29 valid species of . |
| title | Description of two new Nematoda species of the genus Ditlevsen, 1918 (Comesomatidae, Araeolaimida, Nematoda) from the Yellow Sea, China. |
| url | https://pubmed.ncbi.nlm.nih.gov/42040979/ |