The Mongolian redfin (''Chanodichthys mongolicus'') is a species of

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or h ...

in the genus ''

Chanodichthys ''Chanodichthys'' is a genus of cyprinid freshwater fish, consisting of five species from eastern Asia (China, Mongolia, Russia and Vietnam). The name is derived from the Greek word ''chanos'', meaning "abyss, mouth opened, inmensity", and the Gr ...

''. This East Asian freshwater

cyprinid Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest ver ...

is found in China, Russia and

Mongolia Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 million, ...

where it ranges from the Amur River south to the

Yangtze The Yangtze or Yangzi ( or ; ) is the longest river in Asia, the third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in the Tanggula Mountains (Tibetan Plateau) and flows ...

and inland to

Lake Buir Buir Lake ( mn, Буйр нуур, Buir nuur; ) is a freshwater lake that straddles the border between Mongolia and China. It lies within the Buir Lake Depression. The Chinese city of Hulunbuir is named after both this lake and Hulun Lake, which ...

and

Kherlen River Kherlen River (also known as Kern or Kerülen; ; ) is a 1,254 km river in Mongolia and China. Course The river originates in the south slopes of the Khentii mountains, near the Burkhan Khaldun mountain in the Khan Khentii Strictly Protec ...

. There are also records from the Red River in

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

that probably are this species. It reaches in length and in weight.

References

Chanodichthys Fish described in 1855 Taxa named by Stepan Ivanovich Basilewsky {{Cultrinae-stub