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E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2020, Vol. 8, Issue 5, Part A

Review of the spiny eels of northeast India with description of Macrognathus dhanzei sp. nov. (Teleostei: Synbranchiformes: Mastacembelidae)


Author(s): L. Arunkumar

Abstract: Northeast India is one of important ichthyobiodiversity hot-spot area, mainly drained by four river drainages or basins viz., Brahmaputra, Barak-Meghna-Surma, Chindwin and Kaladan. Eight species viz., five species of spiny eels of Macrognathus and three species of Mastacembelus are reported from this region and shared 9.19% in the world. Macrognathus aculeatus of Dhanze et al. (2018) is erected as a new species, M. dhanzei due to lack of ocelli, 28-34 vertical transverse bars, XXIV-XXVII dorsal spines, 31-38 soft dorsal fin rays, i 15-18 pectoral fin rays, 30-41 soft anal fin rays, 10-12 caudal fin rays, dorsal spine fin base length 72.6-79.9%SL, preorbital or snout length 34.3-44.0% HL, head width 15.2-29.1%HL, upper jaw length 24.3-30.0% HL, absence of rostral plates and presence of 72 vertebrae respectively. Easiest key for the spiny eel of the genus Macrognathus in the northeast India is provided.

Pages: 44-50  |  265 Views  48 Downloads

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How to cite this article:
L. Arunkumar. Review of the spiny eels of northeast India with description of Macrognathus dhanzei sp. nov. (Teleostei: Synbranchiformes: Mastacembelidae). Int J Fish Aquat Stud 2020;8(5):44-50.
International Journal of Fisheries and Aquatic Studies