Tor tor, commonly known as the tor mahseer or tor barb, is a species of cyprinid fish found in fast-flowing rivers and streams with rocky bottoms in Bangladesh, Bhutan, India, Nepal, and Pakistan. It is a commercially important food and game fish. Its population is rapidly declining in its native range due to overfishing. It is a large fish, reaching 36 cm (14 in) at maturity, but lengths of 150 cm (4.9 ft) have been recorded,but the maximum length is 200cm. The fish is well armoured by their record large scales, each reaching up to 10 cm (3.9 in) in length.