Batoid fishes (Elasmobranchii: Rhinidae, Rhynchobatidae, Rhinobatidae, Glaucostegidae and Dasyatidae) from the southeastern Arabian Sea

Purushottama, G B and Thomas, Sujitha and Rajesh, K M and Nataraja, G D and Ulvekar, Chandrakanth Ganapati and Kizhakudan, Shoba Joe and Rohit, Prathibha and Zacharia, P U (2022) Batoid fishes (Elasmobranchii: Rhinidae, Rhynchobatidae, Rhinobatidae, Glaucostegidae and Dasyatidae) from the southeastern Arabian Sea. Marine Fisheries Information Service, Technical and Extension Series (251). pp. 7-14. ISSN 0254-380X

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Abstract

Batoid fishes representing families Rhinidae, Rhinobatidae, Glaucostegidae (Order: Rhinopristiformes) and Dasyatidae (Myliobatiformes), with limited information available from southeastern Arabian Sea off Karnataka coast are described. The distribution of five Rhino rays viz., Rhynchobatus australiae, Rhynchobatus laevis, Rhinobatos punctifer, Glaucostegus granulatus, Rhinobatos lionotus and twelve sting rays such as Himantura leoparda, Himantura undulata, Himantura tutul, Maculabatis arabica, Neotrygon indica, Pastinachus ater, Pastinachus gracilicaudus, Pteroplatytrygon violacea, Pateobatis fai, Pateobatis bleekeri, Taeniurops meyeni and Urogymnus asperrimus is reported. Further, based on spotting patterns recorded on dorsal surface and contour of ocellae, five morphotypes of Himantura leoparda, and two of Himantura tutul are illustrated. Observations on six species (Rhinobatos punctifer, Rhinobatos lionotus, Himantura undulata, Himantura tutul, Neotrygon indica and Pastinachus gracilicaudus) is given.

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