Gabriella H Berman, Avery S. Hiley, Geoffrey B. Read, Greg W. Rouse
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引用次数: 0
摘要
Osedax 目前已知分布在世界各地，有 30 多个已命名和未命名的物种。在此，我们报告从两个地方发现了四个新种：来自墨西哥湾的 Osedax bozoi n. sp.和 Osedax craigmcclaini n. sp.，以及来自新西兰近海的 Osedax estcourti n. sp.和 Osedax traceyae n. sp.。Osedax bozoi n. sp.、Osedax estcourti n. sp.Osedax craigmcclaini n. sp.属于羽状颚支系 V。遗传学数据清楚地表明，这四个新种与它们的近缘种Osedax是不同的。其中两个新种的发现深度小于 400 米，这也是首次显示第二支系中较浅水域 Osedax 的发生率。
New Species of Osedax (Siboglinidae: Annelida) from New Zealand and the Gulf of Mexico
Osedax is now known to be distributed around the world with more than 30 named and undescribed species. Here we report the discovery of four new species from two localities: Osedax bozoi n. sp. and Osedax craigmcclaini n. sp. from the Gulf of Mexico and Osedax estcourti n. sp. and Osedax traceyae n. sp. from off New Zealand. Osedax bozoi n. sp., Osedax estcourti n. sp., and Osedax traceyae n. sp. belong to Clade II within Osedax, one of the nude palp or apinnulate clades. Osedax craigmcclaini n. sp. belongs to the pinnulate palp Clade V. This study relies primarily on phylogenetic analysis, with some morphological analysis. Genetic data clearly show that the four new species are distinctive from their closest Osedax relatives. Two of the new species were found from less than 400 m depth, and incidences of shallower water Osedax in Clade II are shown here for the first time.
期刊介绍：
Zootaxa is a peer-reviewed international journal for rapid publication of high quality papers on any aspect of systematic zoology, with a preference for large taxonomic works such as monographs and revisions. Zootaxa considers papers on all animal taxa, both living and fossil, and especially encourages descriptions of new taxa. All types of taxonomic papers are considered, including theories and methods of systematics and phylogeny, taxonomic monographs, revisions and reviews, catalogues/checklists, biographies and bibliographies, identification guides, analysis of characters, phylogenetic relationships and zoogeographical patterns of distribution, descriptions of taxa, and nomenclature. Open access publishing option is strongly encouraged for authors with research grants and other funds. For those without grants/funds, all accepted manuscripts will be published but access is secured for subscribers only.
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