New occurrence of the genus Pseudolaguvia (Teleostei: Sisoridae) from the Indo-Bhutan streams of the Brahmaputra drainage of Assam, India
Abstract: Three different species of sisorid catfishes of the genus Pseudolaguvia are reported from the downstream of Aie tributary near the foot hills of the Chirang District of Assam, India. Morphometrically the Pseudolaguvia ferula Ng, 2006 distinguished from its congeners in having a terete head and body with combination of narrower head width (18.8 ̶ 19.0 % SL), shorter adipose-fin base (12.8 ̶ 13.7 % SL), presence of unculiferous ridges on the thoracic adhesive apparatus joined at their posterior ends.