Proceratophrys melanopogon
It is endemic to Serra do Mar in Rio de Janeiro and São Paulo states , Brazil . 
<triplet> Serra do Mar <subj> Rio de Janeiro <obj> located in the administrative territorial entity <triplet> Rio de Janeiro <subj> Brazil <obj> country <triplet> São Paulo state <subj> Brazil <obj> country <triplet> Brazil <subj> Rio de Janeiro <obj> contains administrative territorial entity <subj> São Paulo state <obj> contains administrative territorial entity