Xin Wenpei, Zhang Chao, Ali Abid, Zhang Xiaoqing, Li Shuqiang, Hou Zhonge
School of Life Sciences; Hebei University; Baoding 071002; China; Key Laboratory of Zoological Systematics and Evolution; Institute of Zoology; Chinese Academy of Sciences; Beijing 100101; China.
School of Life Sciences; Hebei University; Baoding 071002; China.
Zootaxa. 2024 Apr 3;5432(4):509-534. doi: 10.11646/zootaxa.5432.4.3.
Two new species of the genus Sarothrogammarus Martynov, 1935 are described and illustrated from Pakistan. Sarothrogammarus miandamensis sp. nov. is characterized by the oval eyes; pereopod III having filtrative setae on merus, carpus and propodus; uropod III terminal article distinct and inner ramus scale-shaped; and having robust setae and slender setae on urosomites I-III. Sarothrogammarus kalamensis sp. nov. can be distinguished from the above species by pereopod III having filtrative setae on merus, but few on carpus and propodus. Detailed morphological characteristics, as well as comparisons with closely related species are provided. Molecular phylogenetic analyses suggest that S. miandamensis sp. nov. is clustered with S. kalamensis sp. nov., with a genetic distance of 19% for COI between the two species.
本文描述并阐释了采自巴基斯坦的1935年命名的萨罗氏钩虾属（Sarothrogammarus Martynov）的两个新物种。米亚姆丹萨罗氏钩虾（Sarothrogammarus miandamensis sp. nov.）的特征为：眼睛呈椭圆形；第三步足的 merus、腕节和指节上有滤鳃刚毛；第三尾足末节明显，内肢呈鳞片状；第一至三腹节上有粗壮刚毛和细长刚毛。卡拉姆萨罗氏钩虾（Sarothrogammarus kalamensis sp. nov.）与上述物种的区别在于，第三步足的merus上有滤鳃刚毛，但腕节和指节上较少。文中提供了详细的形态特征以及与近缘物种的比较。分子系统发育分析表明，米亚姆丹萨罗氏钩虾与卡拉姆萨罗氏钩虾聚为一支，两个物种之间细胞色素氧化酶亚基I（COI）的遗传距离为19%。
