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New species of Thoonchus (Enoplida, Enchelidiidae) from the Yellow Sea and redescription of T. giganticus Belogurova et al., 1986
Zograf, Julia K.1; Pavlyuk, Olga N.1; Trebukhova, Yulia A.1; Baoquan, Li2
Source PublicationZOOTAXA
ISSN1175-5326
2020-09-02
Volume4845Issue:2Pages:239-252
Keywordfree-living nematodes pictorial key to species taxonomy SEM China
DOI10.11646/zootaxa.4845.2.5
Corresponding AuthorZograf, Julia K.(zojulia@yandex.ru)
AbstractThe family Enchelidiidae is recovered as monophyletic and appears to be a more recently derived taxon within the superfamily Oncholaimoidea. It combines nematodes with buccal cavity with three unequal teeth, crenate pharynx, and absence of demanian system. Genus Thoonchus was erected for nematodes characterized by the large buccal cavity with heavily cuticularized walls and several rows of denticles, short and arcuate spicules and gubernaculums with expanded corpus. One new species is described here from the Sishili Bay, located in the northern Yellow Sea. Thoonchus covidus sp. nov. is characterized by the body length 3195-4339 mu m, outer labial and cephalic setae in one circle, pocket shaped amphid above the buccal cavity base, secretory-excretory pore at the base of cephalic setae, arched spicules, gubernaculum with thin proximal extension parallel to spicules, preanal supplement absent, three pairs of preanal papillae. It differs from other congeners by the position of secretory-excretory pore, absence of supplementary organ in males and presence of three pairs of precloacal papillae. Redescription of T. giganticus is also provided. After critical evaluation of the genus we recognize 4 valid species and provide a taxonomic key to species.
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; CAS ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences ; CAS, the Program of Ministry of Science and Technology of the People's Republic of China
Indexed BySCI
Language英语
WOS KeywordMARINE NEMATODES NEMATODA ; ISLAND ; GENUS
WOS Research AreaZoology
WOS IDWOS:000567824600003
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Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/28369
Collection海岸带生物学与生物资源利用重点实验室
海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
Corresponding AuthorZograf, Julia K.
Affiliation1.Russian Acad Sci, Far Eastern Branch, AV Zhirmunsky Natl Sci Ctr Marine Biol, Paltchevsky Str 17, Vladivostok 690041, Russia
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
Recommended Citation
GB/T 7714
Zograf, Julia K.,Pavlyuk, Olga N.,Trebukhova, Yulia A.,et al. New species of Thoonchus (Enoplida, Enchelidiidae) from the Yellow Sea and redescription of T. giganticus Belogurova et al., 1986[J]. ZOOTAXA,2020,4845(2):239-252.
APA Zograf, Julia K.,Pavlyuk, Olga N.,Trebukhova, Yulia A.,&Baoquan, Li.(2020).New species of Thoonchus (Enoplida, Enchelidiidae) from the Yellow Sea and redescription of T. giganticus Belogurova et al., 1986.ZOOTAXA,4845(2),239-252.
MLA Zograf, Julia K.,et al."New species of Thoonchus (Enoplida, Enchelidiidae) from the Yellow Sea and redescription of T. giganticus Belogurova et al., 1986".ZOOTAXA 4845.2(2020):239-252.
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