Opsariichthys uncirostris
Opsariichthys uncirostris, locally known as the kkeuli and commonly known as the piscivorous chub, the three-lipped chub, or the notched mouth chub, is a species of freshwater ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies. It is found in Siberia, China, Korea and Japan. It has a maximum length of ; males have a common length of.