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GONG Lin, LI Xinzheng, XIAO Ning, HE Lisheng, ZHANG Haibin, WANG Yong. Rediscovery of the abyssal species Peniagoneleander Pawson and Foell, 1986 (Holothuroidea: Elasipodida: Elpidiidae): the first record from the Mariana Trench area[J]. Journal of Oceanology and Limnology, 2020, 38(4): 1319-1327

Rediscovery of the abyssal species Peniagoneleander Pawson and Foell, 1986 (Holothuroidea: Elasipodida: Elpidiidae): the first record from the Mariana Trench area

GONG Lin1,2,3, LI Xinzheng1,2,3,4, XIAO Ning1,2,3, HE Lisheng5, ZHANG Haibin5, WANG Yong5
1 Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
2 Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, China.;
3 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;
4 University of Chinese Academy of Sciences, Beijing 100049, China;
5 Department of Life Science, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China
The elpidiid holothurian Peniagone leander Pawson and Foell, 1986 is recorded for the first time from the Mariana Trench area at a depth of 5 571 m. The type description of this species was based on only in-situ photographs. P. leander is re-described and illustrated based on a preserved material and in-situ photographs taken on the seabed. The 16S rRNA was also obtained from the specimen and submitted to GenBank. This is the fourth discovery of this species, extending its bathymetric range in the western Pacific Ocean.
Key words:    Elpidiidae|abyssal zone|deep-sea holothurian|benthopelagic species|new record   
Received: 2020-01-27   Revised: 2020-03-21
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