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Paragorgia papillata sp. nov., a new bubblegum coral (Octocorallia: Paragorgiidae) from a seamount in the tropical Western Pacific

  • Seamount Megabenthos Taxonomy and Phylogeny
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Abstract

A new species of bubblegum coral, Paragorgia papillata sp. nov., discovered from a seamount located on the Caroline Ridge at the water depth of 858 m, is studied using morphological and molecular approaches. The new gorgonian is white-colored, uniplanar with prominent autozooids, and measures about 670-mm high and 690-mm wide. The genetic distance and phylogenetic analysis showed that P. papillata sp. nov. was closely related to P. coralloides Bayer, 1993, but the former differs morphologically from the latter by its prominent calyces (diameter 2.0–4.0 mm and height 1.5–3.0 mm vs. both diameter and height about 1 mm), white cortex (vs. pink), regular 8-radiates in surface cortex (vs. mostly 8-radiate derived globular radiates) and highly ornate medullar spindles (length 185–100 µm vs. no more than 150 µm). P. papillata sp. nov. is the third known white-colored species of the genus, and the fifth species found in the tropical Western Pacific.

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Data Availability Statement

Sequence data analyzed during this study has been deposited in the GenBank.

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Acknowledgment

We appreciate the crew of R/V Kexue and ROV Faxian for their assistance on sample and data collection, and we thank our colleague Mr. Shaoqing WANG for photographing freshly collected specimen onboard. We also appreciate Center for Ocean Mega, Science, Chinese Academy of Sciences for organizing the expedition.

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Authors and Affiliations

  1. Laboratory of Marine Organism Taxonomy and Phylogeny, Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China

    Yang Li, Zifeng Zhan & Kuidong Xu

  2. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China

    Kuidong Xu

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

    Kuidong Xu

Authors
  1. Yang Li
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  2. Zifeng Zhan
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  3. Kuidong Xu
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Corresponding author

Correspondence to Kuidong Xu.

Additional information

Supported by the Science & Technology Basic Resources Investigation Program of China (No. 2017FY100804), the National Natural Science Foundation of China (Nos. 41930533, 31970489), the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDB42000000), and the Senior User Project of R/V Kexue (Nos. KEXUE2019GZ04, KEXUE2020G01)

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Li, Y., Zhan, Z. & Xu, K. Paragorgia papillata sp. nov., a new bubblegum coral (Octocorallia: Paragorgiidae) from a seamount in the tropical Western Pacific. J. Ocean. Limnol. 39, 1758–1766 (2021). https://doi.org/10.1007/s00343-021-0404-7

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  • DOI: https://doi.org/10.1007/s00343-021-0404-7

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