The Thai Mahseer Carp, also called Malay Mahseer, is native to large river systems from the Himalayas to the tropical jungles of Southeast Asia. Adults migrate upstream to spawn and juveniles migrate downstream through flood plains.

It is omnivorous and can grow to over a metre long. The Javan Mahseer, Tor tambra, may be the same species. They may be threatened by overfishing.

The Orange-finned Mahseer of India, Tor remadevii, is one the largest of the Mahseer carp growing to 1.5m long, but is critically endangered through overfishing (particularly dynamite fishing), construction of dams and introduction of non-native mahseers (Himalayan Golden and Black Mahseers) to its Western Ghats habitat. It has been claimed that the rare and endangered Himalayan Golden Mahseer can reach 2.75m long.

The Blue Mahseer is native to river systems also of Thailand and additionally of Myanmar. It is one of the "lesser mahseers" - ie not in the Tor genus of monster mahseers - and grows to some 60cm (2 feet) long. Like other mahseer carp, it has large scales. It also has a bluish grey tinge and blue-grey fins.