The Khanka gudgeon (''Squalidus chankaensis'') is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
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 ...
, an East Asian freshwater fish that occurs from the
Amur
The Amur (russian: река́ Аму́р, ), or Heilong Jiang (, "Black Dragon River", ), is the world's tenth longest river, forming the border between the Russian Far East and Northeastern China ( Inner Manchuria). The Amur proper is long, ...
basin in Russia, through China, Mongolia and Japan, to Vietnam. It reaches up to in total length.
References
Squalidus
Taxa named by Benedykt Dybowski
Fish described in 1872
{{Cyprinidae-stub