<i>Glyptothorax dihangensis</i>, A New Sisorid Catfish, (Teleostei: Sisoridae) from Arunachal Pradesh, North-Eastern India

A new sisorid catfish, Glyptothorax dihangensis, is described from the Brahmaputra River drainage in Arunachal Pradesh, North-east India. It is distinguished from its congeners in having a combination of the following characters: a rhomboid shaped thoracic adhesive apparatus, with a cone type median depression without striae and widely openes posteriorly; unculiferous ridges of adhesive apparatus not extending anteriorly onto gular region; presence of plicae on ventral surfaces of first pectoral and pelvic fins rays, maxillary barbel almost reaching posterior end of the pectoral f in; outer mandible barbel reaching pectoral fin; presence of three pale cream longitudinal stripes on dorsal, lateral and ventral sides of the body; tuberculated body.