Pavan-Kumar Annam, Kumar Rajan, Pitale Pranali, Shen Kang-Ning, Borsa Philippe
Fish Genetics and Biotechnology Division, ICAR-Central Institute of Fisheries Education, Mumbai 61, India.
Fisheries Resources and Postharvest Division, ICAR-Central Institute of Fisheries Education, Mumbai, India.
C R Biol. 2018 Feb;341(2):120-130. doi: 10.1016/j.crvi.2018.01.004. Epub 2018 Feb 4.
The blue-spotted maskray, previously N. kuhlii, consists of up to eleven lineages representing separate species. Nine of these species (N. australiae, N. bobwardi, N. caeruleopunctata, N. malaccensis, N. moluccensis, N. orientale, N. vali, N. varidens, N. westpapuensis) have already been formally described and two (Indian Ocean maskray and Ryukyu maskray) remain undescribed. Here, the Indian Ocean maskray is described as a new species, Neotrygon indica sp. nov. Specimens of the new species were generally characterized on their dorsal side by a moderately large number of small ocellated blue spots, a low number of medium-sized ocellated blue spots, the absence of large ocellated blue spots, a high number of dark speckles, a few dark spots, and a conspicuous occipital mark. The new species formed a distinct haplogroup in the tree built from concatenated nucleotide sequences at the CO1 and cytochrome b loci. A diagnosis based on colour patterns and nucleotide sequences at the CO1 and cytochrome b loci is proposed. The distribution of N. indica sp. nov. includes the Indian coast of the Bay of Bengal, the Indian coast of the Laccadives Sea, and Tanzania. Considerable sampling effort remains necessary for an in-depth investigation of the phylogeographic structure of the Indian Ocean maskray.
蓝斑条尾魟，以前被称为库氏条尾魟，由多达11个谱系组成，代表不同的物种。其中9个物种（澳大利亚条尾魟、鲍氏条尾魟、蓝斑条尾魟、马六甲条尾魟、摩鹿加条尾魟、东方条尾魟、瓦氏条尾魟、杂斑条尾魟、西巴布亚条尾魟）已经被正式描述，另外两个（印度洋条尾魟和琉球条尾魟）尚未被描述。在此，印度洋条尾魟被描述为一个新物种，即印度新条尾魟（Neotrygon indica sp. nov.）。新物种的标本通常在其背侧具有以下特征：数量适中的小的眼状蓝斑、数量较少的中等大小的眼状蓝斑、没有大的眼状蓝斑、大量的深色斑点、一些黑斑以及一个明显的枕部斑。新物种在基于CO1和细胞色素b基因座的串联核苷酸序列构建的系统树中形成了一个独特的单倍群。提出了基于颜色模式以及CO1和细胞色素b基因座核苷酸序列的诊断方法。印度新条尾魟的分布包括孟加拉湾的印度海岸、拉克代夫海的印度海岸以及坦桑尼亚。对于深入研究印度洋条尾魟的系统地理结构而言，仍需要大量的采样工作。
