A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-15 DOI:10.3897/subtbiol.48.112984

M. Niemiller, A. G. Cannizzaro, T. R. Sawicki, David C. Culver

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引用次数: 0

Abstract

We describe a new species of subterranean amphipod (Amphipoda: Crangonyctidae) in the genus Stygobromus from a hypotelminorheic seepage spring at Shepherd Parkway, part of National Capital East Parks, Washington, D.C., USA, part of the National Park System, using both morphological and genetic approaches. The Anacostia Groundwater Amphipod, S. anacostensissp. nov. is a member of the S. tenuis species group but differs from related congeners based on body size, serrate blade-like edge of both palms of gnathopods 1 and 2, presence of rastellate setae on the posterodistal margin of the carpus of gnathopod 2, and aspects of the second antennae, mandibular palp, pereopods 5–7, uropods 1 and 2, and telson. Moreover, S. anacostensissp. nov. is genetically distinct from S. tenuis in the Washington D.C. metropolitan area. The description of S. anacostensissp. nov. increases the number of described Stygobromus species to eight in the Washington D.C. area and highlights the need for continued biodiversity studies, even in regions that have received considerable attention.

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来自美国华盛顿特区一个下矿化渗泉的 Stygobromus Cope, 1872 新种（两足纲，Crangonyctidae）。

我们采用形态学和遗传学方法，描述了一种来自美国华盛顿特区国家首都东部公园（国家公园系统的一部分）谢泼德公园路（Shepherd Parkway）的下矿化渗泉的地下有脚类动物（有脚类：Crangonyctidae）新物种。Anacostensissp. nov.是S. tenuis种群的成员，但在体型、第1和第2节肢掌的锯齿状刀刃边缘、第2节肢腕的后腹缘存在星状刚毛以及第2触角、下颌颚、第5-7节肢、第1和第2节肢以及尾柄等方面与相关同系动物不同。此外，S. anacostensissp.nov.与华盛顿特区大都会地区的 S. tenuis 在遗传学上是不同的。Anacostensissp. nov.的描述使华盛顿特区描述的Stygobromus物种增加到8种，并强调了继续进行生物多样性研究的必要性，即使是在已经受到相当关注的地区。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.