''Hemisalanx brachyrostralis'' 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 icefish

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

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 ...

basin, China. It is the only known species in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

''Hemisalanx'', after ''Hemisalanx prognathus'' was moved to genus '' Salanx''. In a study of the five freshwater icefish species in the Yangtze, it was a relatively low-density species, being much less frequent than '' Neosalanx taihuensis'' and ''N. oligodontis'', but more than ''

Protosalanx ''Protosalanx'' is a small genus of icefishes that are native to China, Korea and Vietnam where they primarily inhabit coastal waters and nearby fresh waters. They are commercially fished and used for aquaculture in China, where also introduced ...

hyalocranius'' and '' N. tangkahkeii''. ''H. brachyrostralis'' reaches up to in

total length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish ...

References

Salangidae Monotypic ray-finned fish genera Freshwater fish of China Endemic fauna of China Fish described in 1934 Taxa named by Charles Tate Regan {{Osmeriformes-stub