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Two new species of Paramphimonhystrella (Nematoda, Monhysterida, Xyalidae) from the deep-sea sediments in the Western Pacific Ocean and adjacent shelf seafloor
Shi, Benze1; Yu, Tingting1; Xu, Kuidong1,2,3
2017-11-07
发表期刊ZOOTAXA
卷号4344期号:2页码:308-320
文章类型Article
摘要Two new species of marine nematodes, Paramphimonhystrella longispicula sp. n. in the deep-sea sediments from the Philippine Sea in the tropical Western Pacific Ocean with the water depth of 3920-5176 m and P. eurystoma sp. n. in the shelf seafloor from the East China Sea with the water depth of 55-64 m, are described. Both species possess long and slender spicules, which are present only in the congener P. barbula, a species discovered from the continental slope of New Zealand. Paramphimonhystrella longispicula sp. n. can be easily distinguished from P. barbula by the relatively broader buccal cavity, the unequally long cervical setae and a higher number of terminal setae. Paramphimonhystrella eurystoma sp. n. is unique in having a peculiar gubernaculum with two proximal capitula and a peculiar hammer-shaped cuticularized piece posterior to vulva, by which it can be distinguished from P. longispicula sp. n. and P. barbula as well as other congeners. Paramphimonhystrella longispicula sp. n. differs from P. eurystoma sp. n. also by the number of terminal setae (4 vs. 2). A dichotomous key to nine valid species of Paramphimonhystrella is provided.
关键词Deep-sea East China Sea Free-living Marine Nematode New Species Taxonomy
DOI10.11646/zootaxa.4344.2.6
收录类别SCI
语种英语
WOS记录号WOS:000414406300006
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/143077
专题海洋生物分类与系统演化实验室
作者单位1.Chinese Acad Sci, Dept Marine Organism Taxon & Phylogeny, Inst Oceanol, Qingdao 266237, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Shi, Benze,Yu, Tingting,Xu, Kuidong. Two new species of Paramphimonhystrella (Nematoda, Monhysterida, Xyalidae) from the deep-sea sediments in the Western Pacific Ocean and adjacent shelf seafloor[J]. ZOOTAXA,2017,4344(2):308-320.
APA Shi, Benze,Yu, Tingting,&Xu, Kuidong.(2017).Two new species of Paramphimonhystrella (Nematoda, Monhysterida, Xyalidae) from the deep-sea sediments in the Western Pacific Ocean and adjacent shelf seafloor.ZOOTAXA,4344(2),308-320.
MLA Shi, Benze,et al."Two new species of Paramphimonhystrella (Nematoda, Monhysterida, Xyalidae) from the deep-sea sediments in the Western Pacific Ocean and adjacent shelf seafloor".ZOOTAXA 4344.2(2017):308-320.
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