Kwon So-Yeon, Kim Min-Seop, Heo Jun-Haeng, Kim Young-Hyo
Department of Life Sciences, Dankook University, Cheonan, KOREA 31116.
Zootaxa. 2020 Dec 23;4896(4):zootaxa.4896.4.5. doi: 10.11646/zootaxa.4896.4.5.
A new species, Gammarus baengnyeongensis sp. nov., belonging to the family Gammaridae Leach, 1814 was collected from the Baengnyeongdo and Daecheongdo islands in South Korea. This new species is characterized by the flagellum of antenna 2 with calceoli, and the length ratio of outer ramus to inner ramus of uropod 3. Descriptions of diagnostic characteristics of the species are provided in the text. We performed statistical analysis to confirm the significance of morphological differences of interspecies. Additionally, we compare the new species to related species by the partial sequence of the mitochondrial cytochrome c oxidase subunit 1 (CO1) gene. Genetic distances between the new species and closely related species rated from 29.1-40.8%, which highly supports Gammarus baengnyeongensis sp. nov. as a valid species. In this study, we add one new Gammarus species in Korean waters.
一个新物种，白翎岛钩虾（Gammarus baengnyeongensis sp. nov.），隶属于1814年利奇所定的钩虾科，从韩国的白翎岛和大青岛采集而来。该新物种的特征在于第二触角鞭节有钙质体，以及第三尾足外肢与内肢的长度比。文中给出了该物种诊断特征的描述。我们进行了统计分析以确认种间形态差异的显著性。此外，我们通过线粒体细胞色素c氧化酶亚基1（CO1）基因的部分序列将该新物种与相关物种进行比较。新物种与近缘物种之间的遗传距离为29.1 - 40.8%，这有力地支持了白翎岛钩虾作为一个有效物种。在本研究中，我们在韩国水域增添了一种新的钩虾物种。
