Tang Yan, Zheng Xiaodong, Lu Chungcheng
Key Laboratory of Mariculture, Ocean University of China, Qingdao, 266003 China.
MOE Key Laboratory of Evolution & Marine Biodiversity and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China.
Mar Life Sci Technol. 2024 Nov 4;6(4):750-767. doi: 10.1007/s42995-024-00258-6. eCollection 2024 Nov.
The genus comprises 13 species, and has been reported mostly in the Western Pacific Ocean. Here, we described three new species from China, sp. nov., sp. nov., and sp. nov., based on morphometric and meristic characteristics. The diagnoses, descriptions and detailed morphometric data are provided for each species. The cytochrome c oxidase I (COI) genes of the three new species are sequenced, and compared with related species and analyzed for their systematic positions. Both phylogenetic trees constructed using three mitochondrial genes (12S rRNA, 16S rRNA, COI) and one nuclear gene (Rhodopsin) revealed that our new species formed into two distinct clades with strong support values. One clade included sp. nov., sp. 1, , and sp. nov., which clustered together. The other clade showed that sp. nov. was closely related to sp. 2 and sp. 3. and were located at the base of the group. Based on our integrative studies, both morphological and molecular evidence suggested strongly that is more likely to be classified as a species of . Morphological comparisons were made between the three new species and related taxa, which could be recognized based on the 7-8 gill lamellae of each demibranch, numerous small black spots on the subdermal layer of the arms, and an elongated body.
The online version contains supplementary material available at 10.1007/s42995-024-00258-6.
该属包含13个物种，大多报道于西太平洋。在此，我们基于形态测量和可数性状描述了来自中国的三个新物种，即[新物种名称1]新种、[新物种名称2]新种和[新物种名称3]新种。为每个物种提供了诊断、描述和详细的形态测量数据。对这三个新物种的细胞色素c氧化酶I（COI）基因进行了测序，并与相关物种进行比较，分析它们的系统发育位置。使用三个线粒体基因（12S rRNA、16S rRNA、COI）和一个核基因（视紫红质）构建的系统发育树均显示，我们的新物种形成了两个具有强支持值的不同分支。一个分支包括[新物种名称1]新种、[物种1]、[物种2]和[新物种名称2]新种，它们聚集在一起。另一个分支表明[新物种名称3]新种与[物种2]和[物种3]密切相关。[物种4]和[物种5]位于[某类群名称]组的基部。基于我们的综合研究，形态学和分子证据都强烈表明[物种名称]更有可能被归类为[另一类群名称]的一个物种。对这三个新物种与相关分类群进行了形态学比较，这些分类群可根据每个半鳃的7 - 8个鳃小片、腕部皮下层的许多小黑点以及细长的身体来识别。
在线版本包含可在10.1007/s42995-024-00258-6获取的补充材料。
