Benthodytes tetrapapillata sp.nov.,a new elasipodid sea cucumber(Elasipodida:Psychropotidae)from a seamount in the Western Pacific Ocean  

作　　者：Yunlu XIAO Ning XIAO Xiaoqi ZENG 

机构地区：[1]Institute of Deep-sea Science and Engineering,Chinese Academy of Sciences,Sanya 572000,China [2]Department of Marine Organism Taxonomy&Phylogeny,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Laoshan Laboratory,Qingdao 266237,China [5]Shandong Province Key Laboratory of Experimental Marine Biology,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [6]Institute of Evolution&Marine Biodiversity,Ocean University of China,Qingdao 266003,China

出　　处：《Journal of Oceanology and Limnology》2023年第5期1978-1987,共10页海洋湖沼学报（英文）

基　　金：Supported by the National Key Research and Development Program of China (No.2021YFE0193700);the Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDB42000000);the National Natural Science Foundation of China (No.41930533);the Biological Resources Program;Chinese Academy of Sciences (No.KFJ-BRP-017-38);the Major Scientific and Technological Projects of Hainan Province (No.ZDKJ2021036)。

摘　　要：Benthodytes tetrapapillata sp.nov.was collected from a seamount located on the Caroline Ridge at a depth of 2289 m,during the cruise of R/V Kexue in June 2019.We provided detailed descriptions of external and deposits morphology.The phylogenetic analyses based on cytochrome c oxidase I(COI)and a concatenated dataset of 16S and COI genes showed that the new species belonged to Benthodytes that is not monophyletic.Both details of morphological comparisons and molecular analyses confirmed that Benthodytes tetrapapillata sp.nov.is a new psychropotid species.A state of main morphological characters in valid species of Benthodytes is also provided in this study.

关 键 词：HOLOTHUROIDEA Benthodytes 16S cytochrome c oxidase I(COI) new species phylogenetic analysis 

分 类 号：Q958[生物学—动物学]