Metzia mesembrinum
Metzia mesembrinum is a species of freshwater ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies. It was endemic to Taiwan but has been introduced to Singapore. This species has a maximum published standard length of. The species was found on Taiwan proper until the 1920s, when its range was reduced to the outlying island of Kinmen.