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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
Source PublicationZOOTAXA
Volume4344Issue:2Pages:308-320
SubtypeArticle
AbstractTwo 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.
KeywordDeep-sea East China Sea Free-living Marine Nematode New Species Taxonomy
DOI10.11646/zootaxa.4344.2.6
Indexed BySCI
Language英语
WOS IDWOS:000414406300006
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143077
Collection海洋生物分类与系统演化实验室
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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