''Homalopteroides smithi'' 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 ...

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 hor ...

in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

Homalopteroides ''Homalopteroides'' is a genus of hillstream loaches native to Southeast Asia. Species There are currently 11 recognized species in this genus:Randall, Z.S. & Page, L.M. (2015): On the paraphyly of ''Homaloptera'' (Teleostei: Balitoridae) and de ...

''. It can be found in the

Mekong The Mekong or Mekong River is a trans-boundary river in East Asia and Southeast Asia. It is the world's List of rivers by length, twelfth longest river and List of longest rivers of Asia, the third longest in Asia. Its estimated length is , ...

and Chao Phraya basins and

Malay Peninsula The Malay Peninsula (Malay: ''Semenanjung Tanah Melayu'') is a peninsula in Mainland Southeast Asia. The landmass runs approximately north–south, and at its terminus, it is the southernmost point of the Asian continental mainland. The area ...

. The fish is named in honor of ichthyologist Hugh M. Smith (1865-1941), then at the Siam Department of Fisheries, in what is now

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

. Other common names include the Green Gecko Loach or Shi's Flatfin Loach (a direct translation of the fish's chinese name '史氏平鰭鰍').

References

Fish of Thailand Balitoridae Taxa named by Sunder Lal Hora Fish described in 1932 {{Balitoridae-stub