[1][2][3] It is a freshwater, benthopelagic, potamodromous and tropical fish, measuring up to 120 centimetres (3.9 ft) long.

Its dorsum is a dull grey colour with a pale green iridescence.

Its maxillary band of teeth forms a continuous row, and its snout protrudes with upper jaw tooth bands which are somewhat exposed when the animal's mouth is closed; it possesses a large median vomerine tooth plate.

The species migrates into the middle Mekong along the Thai-Lao border as water turbidity increases.

It is known to reproduce early in the flood season, and juveniles of between 6 and 7 centimetres (2.4 and 2.8 in) are taken by the end of the month of June.