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. Pseudolaguvia inornata Ng, 2005 differs from other congeners in having a uniform brown body with a pale mid-dorsal stripe and brown sub-marginal stripes on each lobe of the caudal fin. Pseudolaguvia shawi (Hora, 1921) differs from other congeners in having sharply contrasting cream bands on the brown body, inter-orbital space 28.9 ̶ 32.0 % HL, dorsal-fin spine without serration but rough anterior and posterior border, pelvic fin extending to anal fin, anal fin when laid flat not reaching caudal base.
