Morphological variation in an anopthalmic specimen of Sperata seenghala (Sykes, 1839) from Brahmaputra River, Assam, India Journal title: Journal of Applied and Natural Science Authors: Jyotish Barman, A. K. Jaiswar, S. K. Chakraborty, B. K. Bhattacharjya, Gopalkrishna Gopalkrishna Subject(s):