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

Abstract

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.

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Data Availability Statement

The authors declare that the data supporting the findings of this study are available within the article. The original data of measurements will be available on request from the first author.

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Acknowledgment

We are grateful to the crews of the R/V Xiangyanghong 9 for their support in collecting the deep-sea specimens during the cruises.

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Correspondence to Ning Xiao.

Additional information

Supported by 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), and the Biological Resources Program, Chinese Academy of Sciences (No. KFJ-BRP-017-38)

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Gong, L., Li, X., Xiao, N. et al. Rediscovery of the abyssal species Peniagone leander Pawson and Foell, 1986 (Holothuroidea: Elasipodida: Elpidiidae): the first record from the Mariana Trench area. J. Ocean. Limnol. 38, 1319–1327 (2020). https://doi.org/10.1007/s00343-020-0067-9

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Keyword

  • Elpidiidae
  • abyssal zone
  • deep-sea holothurian
  • benthopelagic species
  • new record