''Triplophysa stenura'' is a species of

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

in the genus ''

Triplophysa ''Triplophysa'' is a genus of fish in the family Nemacheilidae found mainly in and around the Qinghai-Tibet Plateau in China, as well as inland waters of the larger part of central Asia. They can be distinguished from other genera of Nemacheilid ...

''. It lives in swift-flowing streams and is known from the Upper

Yangtze The Yangtze or Yangzi ( or ) is the longest river in Eurasia and the third-longest in the world. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows including Dam Qu River the longest source of the Yangtze, i ...

, Upper

Mekong The Mekong or Mekong River ( , ) is a transboundary river in East Asia and Southeast Asia. It is the world's twelfth-longest river and the third-longest in Asia with an estimated length of and a drainage area of , discharging of wat ...

, Upper

Salween The Salween is a Southeast Asian river, about long, flowing from the Tibetan Plateau south into the Andaman Sea. The Salween flows primarily within southwest China and eastern Myanmar, with a short section forming the border of Myanmar and Tha ...

and Upper

Brahmaputra The Brahmaputra is a trans-boundary river which flows through Southwestern China, Northeastern India, and Bangladesh. It is known as Brahmaputra or Luit in Assamese, Yarlung Tsangpo in Tibetan, the Siang/Dihang River in Arunachali, and ...

river drainages in China and Vietnam. Whether this apparently widespread species really is one species needs to be studied. It grows to SL. A study from the Upper Brahmaputra found ''Triplophysa stenura'' to be the most prevalent prey species for ''

Oxygymnocypris stewartii ''Oxygymnocypris'' is a monospecific genus of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs and related fishes. The only species in this genus is ''Oxygymnocypris stewartii'', a species ...

'', a large predatory cyprinid. ''Triplophysa stenura'' were present in 47% of ''Oxygymnocypris stewartii'' stomachs.

References

S Taxa named by Solomon Herzenstein Fish of the Mekong Basin Freshwater fish of China Fish of Vietnam Fish described in 1888 {{Nemacheilidae-stub