The neotropical frog genus Proceratophrys currently consists of 27 species and only 14 have the advertisement calls described. Herein we describe the advertisement calls of Proceratophrys moratoi based on populations from Minas Gerais State, Brazil and provide an extension to its currently known geographical distribution. Also the advertisement calls of topotypic specimens of P. palustris are described. The analyzed calls of P. moratoi agree with those previously described from São Paulo State and allow this species to be differentiated from the other species in the genus; the calls of P. palustris are very similar to those of P. brauni. Based on the new data for the studied species, we suggest changing the conservation status of P. moratoi to “Data Deficient (DD)” and that of p palustris to “Critically Endangered (CR)”.