Incilius canaliferus
It is found along the Pacific slopes of western El Salvador , Guatemala , and southern Mexico ( Oaxaca and Chiapas states ) . 
<triplet> Mexico <subj> Oaxaca <obj> contains administrative territorial entity <subj> Chiapas <obj> contains administrative territorial entity <triplet> Oaxaca <subj> Mexico <obj> located in the administrative territorial entity <triplet> Chiapas <subj> Mexico <obj> country