Benthodytes occidentpalauta sp.nov.,a new species of deep-sea holothuroid(Elasipodida:Psychropotidae)from the west of Kyushu-Palau Ridge in the Western Pacific Ocean  

作　　者：Chongzhen YUAN Chunsheng WANG Dongsheng ZHANG 

机构地区：[1]Key Laboratory of Marine Ecosystem Dynamics,Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012,China [2]Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,China [3]School of Oceanography,Shanghai Jiao Tong University,Shanghai 200030,China

出　　处：《Journal of Oceanology and Limnology》2024年第1期252-262,共11页海洋湖沼学报（英文）

基　　金：the National Key R&D Program of China(No.2022YFC2803902);the Project of State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,MNR(No.SOEDZZ2002);the Scientific Research Fund of the Second Institute of Oceanography,MNR(No.SZ2101)。

摘　　要：Benthodytes occidentpalauta sp.nov.was collected from the Kyushu-Palau Ridge at a depth of 5481 m in 2021.This new species is characterized by a gelatinous body wall,violet skin,six pairs of dorsal papillae,and a rough mid-ventral surface without tube feet.The dorsal deposits are rod-shaped and tripartite.Two types of papillae deposits as crosses with four arms with central bipartite apophyses.Ventral deposits are rods.Tentacle ossicles are rod-shaped with end protrusions.Gonad deposits are rodshaped,tripartite,and cross-shaped.The phylogenetic analyses based on cytochrome oxidase subunit 1(COI)and 16S individually and a concatenated dataset of COI and 16S genes of this species support that B.occidentpalauta sp.nov.belongs to Benthodytes.

关 键 词：HOLOTHUROIDEA Benthodytes cytochrome oxidase subunit 1(COI) 16S phylogenetic analysis 

分 类 号：Q959[生物学—动物学]