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Issue: Vol. 5293 No. 3: 23 May 2023
Type: Article
Published: 2023-05-23
DOI: 10.11646/zootaxa.5293.3.7
Page range: 557-568
Abstract views: 259
PDF downloaded: 21

Astrocharis margarita sp. nov., a new snake star (Echinodermata, Ophiuroidea, Euryalidae) from a seamount in the Western Pacific

College of Life Sciences Qingdao Agricultural University; Qingdao 266109; China; Laboratory of Marine Organism Taxonomy and Phylogeny; Qingdao Key Laboratory of Marine Biodiversity and Conservation; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071; China; Laoshan Laboratory; Qingdao 266237; China
Laboratory of Marine Organism Taxonomy and Phylogeny; Qingdao Key Laboratory of Marine Biodiversity and Conservation; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071; China; Laoshan Laboratory; Qingdao 266237; China; Shandong Province Key Laboratory of Experimental Marine Biology; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071; China; University of Chinese Academy of Sciences; Beijing 100049; China
Laboratory of Marine Organism Taxonomy and Phylogeny; Qingdao Key Laboratory of Marine Biodiversity and Conservation; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071; China; Laoshan Laboratory; Qingdao 266237; China; Shandong Province Key Laboratory of Experimental Marine Biology; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071; China; University of Chinese Academy of Sciences; Beijing 100049; China
Laboratory of Marine Organism Taxonomy and Phylogeny; Qingdao Key Laboratory of Marine Biodiversity and Conservation; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071; China; Laoshan Laboratory; Qingdao 266237; China; Shandong Province Key Laboratory of Experimental Marine Biology; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071; China; University of Chinese Academy of Sciences; Beijing 100049; China
Echinodermata Astrocharis new species seamount western Pacific

Abstract

During the scientific expedition of the R/V Kexue in 2014, a new species belonging to the genus Astrocharis Koehler, 1904 was collected from a seamount near the Yap Trench. Astrocharis margarita sp. nov. is distinguished from the other species of Astrocharis by the following characters: radial shields are partly naked or completely covered by polygonal ossicles, and the body color is uniformly light pink. Maximum Likelihood Tree and Bayesian Tree, based on a concatenated dataset of COI, 16S, and 18S genes analyses, indicated that the monophyly of Astrocharis was not supported, which suggested the genus needs to be revised.

 

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