''Hemisalanx brachyrostralis'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of icefish

endemic Endemism is the state of a species being found only 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 foun ...

to the

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 ...

basin,

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

. It is the only known species in the

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

''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 ''Neosalanx'' is a genus of Salangidae, icefishes native to Eastern Asia, ranging from Korea, through Japan and China, to Vietnam. They inhabit coastal marine waters, estuaries and river basins (including lakes). There are both species that are T ...

taihuensis'' and ''N. oligodontis'', but more than '' Protosalanx 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, for data used in many areas of ichthyology, including taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured f ...

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