Opsariichthys bidens

Opsariichthys bidens, the Chinese hooksnout carp, is a species of freshwater fish in the family Cyprinidae. It is endemic to fast-flowing streams and rivers of East Asia (China, Japan, North Korea, South Korea, and Russia) and mainland Southeast Asia (Laos and Vietnam). A mid-sized minnow, it has a maximum length of 21.9 cm and a maximum published weight of 58.4 g, with sexual dimorphism favoring larger males.