First Records of Megophrys daweimontis Rao and Yang, 1997 andAmolops vitreus （Bain, Stuart and Orlov, 2006） （Anura：Megophryidae, Ranidae） from Vietnam

Two amphibian species, Megophrys daweimontis and Amolops vitreus, are recorded for the first time from Vietnam, on the basis of a new amphibian collection from Dien Bien and Son La provinces. In addition, acoustic analysis of A. vitreus is also provided based on the advertisement calls recorded in Muong Nhe Nature Reserve of Dien Bien Province, Vietnam.