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

International Journal of Fisheries and Aquatic Studies

2018, Vol. 6, Issue 2, Part H

Biosystematics of the species Xenentodon cancila (Hamilton 1822) (Beloniformes: Belonidae) from Northeastern States of India, with special reference to sexual dimorphism


Author(s): Rani Dhanze, Amarjit Debbarma and JR Dhanze

Abstract: Xenentodon cancila (Hamilton), is the only species of this genus inhabiting freshwater and uniformly distributed throughout the Indian subcontinent and South East Asian countries. While confirming the specific identity of fish species collected from Northeastern states of India, authors came across a lot of specimens tentatively identified as Xenentodon sp. However, on meticulous examination of series of specimens in respect of morphometric and meristic data and also gonad development it was observed that there is a distinct sexual dimorphism in the adult specimens of this species. Male can be distinguished from female of this species in respect of a combination of 16 morphometric proportions viz. (BD, HL %TL & SL; POL, PtOL, LJL, HD, PFL %HL; ED, IOW, PtOL %POL; HD, LCPD %BD; AFBL %AFL; LCPD, CFBL %CPL) as depicted in the (Table 1), besides a distinct hump in adult male (Fig. 1). Based on the evaluation of different morphometric traits a brief redescription of the species is provided.

Pages: 610-615  |  336 Views  27 Downloads

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How to cite this article:
Rani Dhanze, Amarjit Debbarma and JR Dhanze. Biosystematics of the species Xenentodon cancila (Hamilton 1822) (Beloniformes: Belonidae) from Northeastern States of India, with special reference to sexual dimorphism. International Journal of Fisheries and Aquatic Studies. 2018; 6(2): 610-615.
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