It is endemic to Western New Guinea (Indonesia) and occurs in the Arfak and Wondiwoi Mountains on the New Guinea mainland well as on some adjacent islands (Batanta and Waigeo).

The fingers and the toes bear enlarged and grooved discs.

In preserved specimens, the dorsal surfaces are almost patternless dark brown.

Other ventral surfaces are pale and nearly patternless, apart from the faint grayish mottling on the chin.

[3] Platymantis punctatus occurs in rainforest at elevations below 600 m (2,000 ft), usually near streams.