HOME
TheInfoList



The red-tailed black shark (''Epalzeorhynchos bicolor''; syn. ''Labeo bicolor''), also known as the redtail shark and redtail sharkminnow, is a species of freshwater fish in the carp family, Cyprinidae. It is
endemic Endemism is the state of a species In biology, a species is the basic unit of biological classification, classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest grou ...
to
Thailand ) , royal_anthem = '' Sansoen Phra Barami''( en, "Glorify His prestige") , image_map = , map_caption = , capital = Bangkok , coordinates = , largest_city = Bangkok , official_languages = Thai language, Thai ''* ...
and currently critically endangered, but common in aquaria, where it is prized for its deep black body and vivid red or orange tail. The red-tailed black sharks seen in the aquarium trade today are all captive bred. It is not closely related to sharks.


Distribution

The species is
endemic Endemism is the state of a species In biology, a species is the basic unit of biological classification, classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest grou ...
to
Thailand ) , royal_anthem = '' Sansoen Phra Barami''( en, "Glorify His prestige") , image_map = , map_caption = , capital = Bangkok , coordinates = , largest_city = Bangkok , official_languages = Thai language, Thai ''* ...
, and was described by Hugh M. Smith in 1931 as being 'not uncommon' in Bueng Boraphet and the streams which lead from it, and as being found in the Chao Phraya River as far south as Bangkok. A 1934 expedition reported catching a specimen in the Silom canal. As of 2011 it is only known at a single location in the Chao Phraya basin, and has Critically Endangered status on the IUCN Red List. From 1996 until 2011 it was believed to be extinct in the wild. There is no evidence that collection for the aquarium trade is responsible for the species' decline, and it is more likely that construction of dams and draining of swamps that took place during the 1970s were to blame.


Size

Red-tailed black sharks can reach a length of .


Footnotes


References

* {{DEFAULTSORT:shark, black, red-tailed Epalzeorhynchos, red-tailed black shark Fish of Thailand Endemic fauna of Thailand Taxa named by Hugh McCormick Smith Fish described in 1931, red-tailed black shark