Původní popis
Gan, X., Lan, J.-H. & Zhang, E. 2009. Metzia longinasus, a new cyprinid species (Teleostei: Cypriniformes) from the Pearl River drainage in Guangxi Province, South China. Ichthyological Research, 56 (1): 55-61.
Použitá literatura
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2024. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.