Re-description of the longtail butterfly ray, Gymnura poecilura (Shaw, 1804) (Gymnuridae: Myliobatiformes) from Bay of Bengal with a neotype designation

Muktha, M and Akhilesh, K V and Sukumaran, Sandhya and Jasmine, F and Jishnudev, M A and Kizhakudan, Shoba Joe (2016) Re-description of the longtail butterfly ray, Gymnura poecilura (Shaw, 1804) (Gymnuridae: Myliobatiformes) from Bay of Bengal with a neotype designation. Marine Biodiversity. pp. 1-12.

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    Abstract

    The longtail butterfly ray, Gymnura poecilura, was originally described as Raja poecilura by Shaw 1804 without any type material, based on Russell’s (1803) illustration of BTenkee kunsul^ from Vizagapatam (present day Visakhapatnam), India. Because of the absence of detailed taxonomic accounts for G. poecilura, characters mentioned for its identification are often misleading and unreliable, lead- ing to frequent misidentification of the species with congeners in the region. In the absence of type specimens or detailed taxonomic work on the genus Gymnura from the Indian Ocean region, species G. poecilura is considered to be unde- fined. In an effort to clear up the taxonomic vagueness of the species, this article re-describes G. poecilura from fresh ma- terials, designates a neotype from Visakhapatnam, India (western Bay of Bengal) and also reports the presence of a distinct Gymnura species from the northern Arabian Sea with genetic support. Reports of two butterfly rays, G. japonica and G. micrura, from Indian waters are clarified as misidentifica- tions and so must be excluded from the Indian elasmobranch faunal list.

    Item Type: Article
    Uncontrolled Keywords: Taxonomy; Redescription; Gymnuridae; Gymnura poecilura; Indian Ocean; Butterfly ray; Elasmobranchs
    Subjects: Elasmobranch Fisheries
    Demersal Fishes > Ray fisheries
    Fish and Fisheries > Fish Taxonomy
    Divisions: CMFRI-Madras (Chennai)
    CMFRI-Mangalore
    CMFRI-Mumbai
    Depositing User: Arun Surendran
    Date Deposited: 26 Aug 2016 05:15
    Last Modified: 17 Sep 2016 06:03
    URI: http://eprints.cmfri.org.in/id/eprint/11005

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