This species is known from several locations in the rugged mountains of eastern New Guinea, between Mount Kaindi and Mount Obree, Central Province, and Mount Simpson, Milne Bay Province, in Papua New Guinea. It has been collected from 1,280-2,480m asl. It likely occupies most of the Owen Stanley Range at appropriate elevations.
Habitat and Ecology
It lives along small (1-2m wide) streams in montane rainforest. Similar to other species in the genus, it probably lays eggs in streams where the tadpoles also develop.
It is known to be common on the western slope of Mount Obree, Central Province, and on the eastern slope of Mount Simpson, in Milne Bay Province.
Increased sedimentation in the streams due to mining is a localized threat. A road has also been built recently within its range. At Mount Simpson the species is utilized as a food item when it can be obtained. It is not known whether or not the current level of utilization is a threat.
Its distribution and abundance need to be properly documented. Given declines of torrent-dwelling hylids in Australia, monitoring programmes should be initiated. Its range includes Mount Kaindi Wildlife Management Area.
Stephen Richards, Richard Zweifel, Fred Kraus 2004. Nyctimystes trachydermis. In: IUCN 2014