Four new species of Asian horned toads (Anura, Megophryidae, Megophrys) from southern China. - Zhi-Tong Lyu; Yuan-Qiu Li; Zhao-Chi Zeng; Jian Zhao; Zu-Yao Liu; Guo-Xin Guo; Ying-Yong Wang (ZooKeys, 2020)