Pseudobagarius meridionalis is a species of catfish belonging to the family Akysidae (the stream catfishes). It is only known from the Barito River basin in southern Borneo.This is a very small catfish, up to 32 mm standard length, with a body dark brown above with a few scattered pale spots and white below, with a strongly projected upper jaw so that the premaxillary teeth are clearly visible even when the mouth is closed.