Morphology and molecular phylogeny of three black corals(Antipatharia,Schizopathidae)from seamounts in the Western Pacific Ocean,with description of a new species  

作　　者：Ting LÜ Zifeng ZHAN Kuidong XU 

机构地区：[1]Laboratory of Marine Organism Taxonomy and Phylogeny,Shandong Province Key Laboratory of Experimental Marine Biology,Institute of Oceanology,Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China [2]Laboratory for Marine Biology and Biotechnology,Pilot NationalLaboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Oceanology and Limnology》2021年第5期1740-1757,共18页海洋湖沼学报（英文）

基　　金：the Science&Technology Basic Resources Investigation Program of China(No.2017FY100804);the National Natural Science Foundation of China(No.41930533);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB42000000);the Senior User Project of R/V Kexue。

摘　　要：Three deep-sea black corals belonging to the family Schizopathidae,are reported from two seamounts on the Caroline Ridge in the tropical Western Pacific:Umbellapathes parva sp.nov.with depth of 1488-1766 m,Telopathes cf.magna MacIsaac&Best,2013 with depth of 937-1016 m,and Stauropathes cf.punctata(Roule,1905)with depth of 942-1353 m.The latter two species are the first records in the Western Pacific Ocean.U.parva sp.nov.is characterized by monopodial corallum,relatively long unpinnulated stalk with complex pinnulated branche s developing from the lowermost primary pinnules and small spine s.It differs from two known congeners by much smaller spine s and the present of secondary pinnules.T.cf.magna MacIsaac&Best,2013 has sparsely branched corallum,relatively long and simple pinnules arranged in subopposite or alternate pairs.S.cf.punctata(Roule,1905)is characterized by the corallum with almost planar pinnulated branches,and pinnules arranged in subopposite pairs.Our results indicate that the corallum size and shape are variable in conspecific specimens particularly those at different growth stages.By contrast,the size of the polypar spines as well as the abpolypar spines have little variation and can be served as a main differing feature for schizopathid species.The phylogenetic analyses using nuclear internal transcribed spacer region(spanning partial 18 S rDNA,ITS 1,5.8 S,ITS2,and partial 28 S rDNA)and two mitochondrial fragments cox3-IGR-coxl(COI)and trnW-IGR-nad2(NAD2)showed Telopathes,Stau ropathes,and Bathypathes had close relationships,and Umbellapathes formed a sister clade with Alternatipathes.

关 键 词：ANTHOZOA black coral new species SEAMOUNT TAXONOMY Western Pacific 

分 类 号：Q959[生物学—动物学]