New psychropotid species (Echinodermata, Holothuroidea, Elasipodida) of the Western Pacific with phylogenetic analyses

被引：6

作者：

Yu, Chuan ^{[1
,2
]}

Zhang, Dongsheng ^{[1
,2
,3
]}

Zhang, Ruiyan ^{[1
]}

Wang, Chunshen ^{[1
,2
,3
,4
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai, Peoples R China

[2] Minist Nat Resources, Inst Oceanog 2, Key Lab Marine Ecosyst Dynam, Hangzhou, Peoples R China

[3] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Guangdong, Peoples R China

[4] Minist Nat Resources, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Peoples R China

来源：

ZOOKEYS | 2022年 / 1088期

关键词：

Benthodytes; deep-sea; holothurians; Psychropotes; taxonomy;

D O I：

10.3897/zookeys.1088.69141

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Holothurians of the family Psychropotidae are widely distributed but remain the least studied deep-sea holothurians. On an expedition to the Western Pacific, six psychropotid specimens were collected by the Jiaolong Human Operated Vehicle (HOV). Through morphological examination, four of them were identified as a new species, Benthodytes jiaolongi sp. nov., which was characterized as having minute papillae, a narrow brim, and a terminal anus; and the ossicles were rods and primary crosses. The remaining two specimens were identified as Psychropotes verrucicaudatus Xiao, Gong, Kou & Li, 2019, first recorded at the Kyushu-Palau Ridge. The phylogenetic analysis showed that B. jiaolongi sp. nov. and P. verrucicaudatus were embedded in the clades Benthodytes and Psycheotrephes, respectively, and that Benthodytes was paraphyletic. The new species clustered with Benthodytes sanguinolenta and was separated from the clade containing the other Benthodytes species.

引用

页码：99 / 114

页数：16

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