摘要
The elpidiid holothurian Peniagone leander Pawson and Foell,1986 is recorded for the first time from the Mariana Trench area at a depth of 5571 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.
基金
the National Key R&D Program of China(No.2018YFC0309804)
the China Ocean Mineral Resources Research and Development Association Program(No.DY135-E2-3-04)
the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB42000000)
the Biological Resources Program,Chinese Academy of Sciences(No.KFJ-BRP-017-38)。