Abstract
Glyptothorax igniculus, new species, is described from the Chindwin River system (part of the Irrawaddy River drainage) in northwestern Myanmar. It differs from other species of Glyptothorax in the Irrawaddy drainage except G. burmanicus in having a thoracic adhesive apparatus with a lanceolate central depression that is nearly enclosed posteriorly by skin ridges, vs. having an adhestive apparatus that is open caudally. In G. burmanicus the adhesive apparatus is oval in outline and completely closed. Glyptothorax chindwinicus Vishwanath & Linthoingambi, 2007 is shown to be a junior synonym of G. burmanicus Prashad & Mukerji, 1929. Glyptothorax rugimentum is reported for the first time from the Chindwin drainage.