New bathyal amphipod species (Amphipoda: Eusiridae: Rhachotropis) from southwestern Pacific through integrative taxonomy

IF 1.9 3区 生物学 Q3 EVOLUTIONARY BIOLOGY
Laure Corbari, Dario Zuccon, Jean Claude Sorbe, Inmaculada Frutos
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引用次数: 0

Abstract

Within the hyper-diverse group of the amphipods, little is known about deep-sea benthic species that still represent an unknown reservoir of species to be discovered, particularly in remote regions of the southwestern Pacific. Herein, we are describing three new deep-sea species of Rhachotropis from Papua New Guinea, Solomon archipelago, and Vanuatu using an integrative taxonomy approach, combining morphological and molecular characters with biological and ecological information. Nomenclatural comments and a key to Rhachotropis species occurring in the bathyal provinces from the southwestern Pacific are also provided. Comments on the sex ratio and fecundity of the genus are also discussed. The biogeography and distribution of the newly described species as well as congeneric species occurring in the area are discussed, and new DNA data are shedding new light on the global phylogenetic relationships (geography, depth range) of the deep-sea genus Rhachotropis.

Abstract Image

通过综合分类法发现西南太平洋的水底两足类新物种(两足纲:鮨科:Rhachotropis
在片脚类动物这一种类繁多的类群中,人们对深海底栖物种知之甚少,这些物种仍是有待发现的未知物种库,尤其是在西南太平洋的偏远地区。在此,我们采用综合分类法,将形态学和分子特征与生物学和生态学信息相结合,描述了来自巴布亚新几内亚、所罗门群岛和瓦努阿图的三个新的深海Rhachotropis物种。此外,还提供了命名注释和西南太平洋深海省份中出现的 Rhachotropis 物种的检索表。还讨论了该属的性别比例和繁殖力。讨论了新描述物种以及该地区同属物种的生物地理学和分布情况,新的 DNA 数据对深海 Rhachotropis 属的全球系统发育关系(地理、深度范围)提供了新的启示。
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来源期刊
Organisms Diversity & Evolution
Organisms Diversity & Evolution 生物-进化生物学
CiteScore
3.60
自引率
0.00%
发文量
56
审稿时长
>12 weeks
期刊介绍: Organisms Diversity & Evolution (published by the Gesellschaft fuer Biologische Systematik, GfBS) is devoted to furthering our understanding of all aspects of organismal diversity and evolution. Papers addressing evolutionary aspects of the systematics, phylogenetics, morphology and development, taxonomy and biogeography of any group of eukaryotes, recent or fossil, are welcome. Priority is given to papers with a strong evolutionary and/or phylogenetic focus. Manuscripts presenting important methods or tools or addressing key theoretical, methodological, and philosophical principles related to the study of organismal diversity are also welcome. Species descriptions are welcome as parts of a manuscript of broader interest that strive to integrate such taxonomic information with the other areas of interest mentioned above.
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