A new species of the genus Rhachotropis from off Amamioshima Island, northwestern Pacific (Crustacea: Amphipoda: Eusiridae)
A new species of the genus Rhachotropis from off Amamioshima Island, northwestern Pacific (Crustacea: Amphipoda: Eusiridae)
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西北太平洋奄美大岛附近的Rhachotropis属新种（甲壳纲：端足纲：Eusiridae）
DOI：
10.11646/zootaxa.4750.2.2
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发表时间：
2020
期刊：
影响因子：
0.9
通讯作者：
TOMIKAWA KO
中科院分区：
文献类型：
--
作者：
OKAZAKI MASAKUNI;OHTSUKA SUSUMU;TOMIKAWA KO
记述了采自西北太平洋奄美大岛近海的真螺类端足类一新种--雷瓦角棱螺（Rhachotropis reiwa）。新种与其同类的不同之处在于有大的眼睛，pereonite 7，plenite 3和urosomite 1上的中背齿没有中背和背外侧齿，pereopod 5的基部强烈地向后产生，pereopod 6具有三角形基部。本文提供了日本及邻近沃茨的Rhachotropis种类检索表。此外，还测定了其正型的线粒体细胞色素c氧化酶亚基I的核苷酸序列，为今后的研究奠定了基础。
A new species of the eusirid amphipod, Rhachotropis reiwa is described from off Amamioshima Island, northwestern Pacific. The new species differs from its congeners in having large eyes, the middorsal tooth on pereonite 7, pleonite 3 and urosomite 1 without middorsal and dorsolateral teeth, the basis of pereopod 5 strongly produced posteriorly, and pereopod 6 with the triangular basis. A key to the species of Rhachotropis from Japanese and adjacent waters is provided. Additionally, a nucleotide sequence of mitochondrial cytochrome c oxidase subunit I from its holotype was determined for the future study.