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Establishment of Alloptilella splendida *** *** resurrection of Scytalium veneris(Thomson&Henderson,1906),two sea pens(Cnidaria:Pennatulacea)from seamounts in the tropical Western Pacific

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Journal of Oceanology and Limnology 2021年第5期39卷 1790-1804页

作者： Yang LI Zifeng ZHAN Kuidong XU Laboratory of Marine Organism Taxonomy and Phylogeny Shandong Province Key Laboratory of Experimental Marine BiologyInstitute of OceanologyCenter for Ocean Mega-ScienceChineseAcademy of SciencesQingdao 266071China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China University of Chinese Academy of Sciences Beijing 100049China

Sea pens are a highly specialized and morphologically distinct group of octocorallians,but many taxa were poorly described and their phylogenetic relationships are still poorly *** describe two species of sea pens collected from the tropical Western Pacific:Alloptilella splendida *** *** Scytalium veneris(Thomson&Henderson,1906).Alloptilella splendida *** *** with the definition of the recently resurrected genus Ptilella Gray,1870 in most characters,but differs from the latter in the arrangement of autozooids and the location of *** new species mostly resembles Pennatula naresi K(o|")lliker(1880),but differs by the location of me sozooids and the reddish color of sclerite s surrounding *** generic separation is also well supported by their genetic distances and the molecular phylogenetic trees constructed by the concatenated mtMutS-COI-28 S,where Alloptilella clustered with Scytalium Herklots,1858 and formed a clade with the cluster of Ptilella and *** veneris,usually considered as a junior synonym of Scytalium sarsii Herklots,1858,is resurrected by recognizing their distinctive *** is the first record of Scytalium veneris outside its type locality,and the phylogenetic analysis indicates that Scytalium is a monophyletic *** the families pennatulidae and Virgulariidae are polyphyletic,and more morphological and molecular data are needed to clarify the phylogenetic positions of pennatulacean families and genera.

关键词： sea pen pennatulidae Alloptilella new species Scytalium seamount

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