  cyprinus is the genus of typical carps in family cyprinidae. they are of east asian origin and closely related to some more barb-like genera, such cyclocheilichthys and the recently established barbonymus (tinfoils). the crucian carps (carassius) of western eurasia, which include the goldfish (c. auratus), are apparently not as closely related.de graaf et al. (2007) this genus' most widespread and well-known member is the common carp (c. carpio). it is famed as a food fish and widely traded and introduced since antiquity, but in certain areas has multiplied inordinately and become a pest. in some places, such as australia, it is illegal to not kill a common carp when you can, due to their severe overpopulation. in its long use it has been domesticated, and a number of breeds have been developed for food and other purposes. the koi (from japanese nishikigoi, é¦é¯) are well-known common carp breeds, selectively bred for being enjoyed by spectators from above. strictly speaking, "koi" is simply the japanese name of the common carp. the other species of typical carps are generally found in more restricted areas of eastern asia, centered on the yunnan region. in some cases, they are endemic to a single lakes, most notably lake er, as well as lake dian, lake jilu lake qilihu, lake xingyun and lake yi-lung, which are all in yunnan proper. a species from the last-named, c. yilongensis, was apparently endemic; if so, it is probably now extinct. == species == * cyprinus acutidorsalis y. h. wang, 1979 * cyprinus barbatus h. l. chen & h. q. huang, 1977 * cyprinus carpio linnaeus, 1758 ** cyprinus carpio carpio linnaeus, 1758 (common carp) ** cyprinus carpio haematopterus [[eduard von martens|e. 
Carp Cyprininae Cyprinus Wildlife_of_Yunnan