Fei, L., C.-y. Ye, and J.-p. Jiang . 2005. A taxonomic study of the genus Calluella. In: Fei, L., C.-y. Ye, Y.-z. Huang, J.-p. Jiang, and F. Xie (Ed.), An Illustrated Key to Chinese Amphibians. Sichuan Publishing House of Science and Technology [Chongqing], 271-278. [In Chinese with English abstract]