This species is known only from two mountains in south-eastern Papua New Guinea between 1,400 and 1,600m asl: the type locality ("Mondo, Papua" in the Central Province), and Mount Obree, approximately 150km to the south-east.
Habitat and Ecology
It is common along small (approximately 1-2m wide) streams in steep forested terrain. If it is similar to other members of the genus, it lays large eggs in torrential streams and has larvae with large suckers.
It is common in suitable habitat. It was for a long time known only from the original collection but has recently been collected again (F. Kraus pers. comm.), and was possibly overlooked by earlier workers because it seems to inhabit only very tiny trickles instead of the larger streams that many other Nyctimystes species favour.
There are no known threats to this species at present, and there is extensive suitable habitat still available between the two known localities.
Given the declines of torrent-dwelling hylids in Australia, the population status of this species requires close monitoring.
Stephen Richards, Richard Zweifel, Fred Kraus 2004. Nyctimystes gularis. In: IUCN 2014