A sucker fish is among new species discovered in the Greater Mekong region . The new species of the Oreoglanis genus, was found in rocky, fast-flowing streams all over Thailand, and is thought to be present in neighbouring countries as well. They are recognisable by their colouring (mostly brown with yellow spots), large pointed teeth, and the notch in their lower lip. According to one scientist, the oreoglanis catfish have greatly enlarged paired fins that, together with their unique body shape, form a huge sucker. This enables the fish to stick to the rocks in torrential hill streams