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C R Biol. 2018 Feb;341(2):120-130. doi: 10.1016/j.crvi.2018.01.004. Epub 2018 Feb 4.

Neotrygon indica sp. nov., the Indian Ocean blue-spotted maskray (Myliobatoidei, Dasyatidae).

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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.
Aquatic Technology Laboratories, Agricultural Technology Research Institute, Taiwan, People's Republic of China.
Institut de recherche pour le développement (IRD), UMR 250 "Écologie marine tropicale des océans Pacifique et Indien", Nouméa, New Caledonia. Electronic address:


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.


ADN mitochondrial; Diagnose; Diagnosis; Distribution; Mitochondrial DNA; New species; Nouvelle espèce

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