Opsariichthys chengtui
Zacco chengtui or Chengdu chub is a species of freshwater ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies. It inhabits Chengtu, Sichuan Province, China. It was described as Zacco chengtui in 1934 by Shigeru Kimura.