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Benthodytes tetrapapillata sp. nov., a new elasipodid sea cucumber (Elasipodida: Psychropotidae) from a seamount in the Western Pacific Ocean

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Abstract

Benthodytes tetrapapillata sp. nov. was collected from a seamount located on the Caroline Ridge at a depth of 2 289 m, during the cruise of R/V Kexue in June 2019. We provided detailed descriptions of external and deposits morphology. The phylogenetic analyses based on cytochrome c oxidase I (COI) and a concatenated dataset of 16S and COI genes showed that the new species belonged to Benthodytes that is not monophyletic. Both details of morphological comparisons and molecular analyses confirmed that Benthodytes tetrapapillata sp. nov. is a new psychropotid species. A state of main morphological characters in valid species of Benthodytes is also provided in this study.

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Data Availability Statement

The data generated and analyzed to support the research result can be provided by the corresponding author upon reasonable request.

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Acknowledgment

The authors are extremely grateful to the assistance of the crew of ROV Faxian for sample collection and in-situ pictures shooting. Many thanks to the members of Department of Marine Organism Taxonomy & Phylogeny at the Institute of Oceanology, CAS (IOCAS) for their help in sample collection and analysis. We are grateful to three referees for their constructive comments.

Author information

Authors and Affiliations

  1. Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China

    Yunlu Xiao

  2. Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China

    Ning Xiao

  3. University of Chinese Academy of Sciences, Beijing, 100049, China

    Yunlu Xiao

  4. Laoshan Laboratory, Qingdao, 266237, China

    Ning Xiao

  5. Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China

    Ning Xiao

  6. Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, 266003, China

    Xiaoqi Zeng

Authors
  1. Yunlu Xiao
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  2. Ning Xiao
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  3. Xiaoqi Zeng
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Corresponding author

Correspondence to Ning Xiao.

Additional information

Supported by the National Key Research and Development Program of China (No. 2021YFE0193700), the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDB42000000), the National Natural Science Foundation of China (No. 41930533), the Biological Resources Program, Chinese Academy of Sciences (No. KFJ-BRP-017-38), and the Major Scientific and Technological Projects of Hainan Province (No. ZDKJ2021036)

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Benthodytes tetrapapillata sp. nov., a new elasipodid sea cucumber (Elasipodida: Psychropotidae) from a seamount in the Western Pacific Ocean

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Xiao, Y., Xiao, N. & Zeng, X. Benthodytes tetrapapillata sp. nov., a new elasipodid sea cucumber (Elasipodida: Psychropotidae) from a seamount in the Western Pacific Ocean. J. Ocean. Limnol. 41, 1978–1987 (2023). https://doi.org/10.1007/s00343-022-2220-0

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  • DOI: https://doi.org/10.1007/s00343-022-2220-0

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