Nyctimystes zweifeli
Zweifel's Big-eyed Treefrog
family: Hylidae
subfamily: Pelodryadinae
Conservation Status (definitions)
IUCN (Red List) Status Data Deficient (DD)
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Papua New Guinea



View distribution map using BerkeleyMapper.

From the IUCN Red List Species Account:


Range Description

This species is known from a small area of the eastern Star Mountains in the vicinity of the type locality (Telefomin, West Sepik Province, Papua New Guinea), and from an area 30km to the west. It has been recorded at about 1,750m asl. Although it is probably more widely distributed, no data are available to support this view at this stage.

Habitat and Ecology

This species occurs in torrential streams in rainforest. If it is similar to other species in the genus, it lays large eggs in torrential, clear and rocky streams, and the larvae have large suckers.


Its population status is unknown.

Population Trend


Major Threats

There are no known threats to this species, and there are not thought to be any specific threats to its habitat at present.

Conservation Actions

Given the declines of torrent-dwelling hylids in Australia, the population status of this species requires close monitoring.

Red List Status

Data Deficient (DD)


Listed as Data Deficient in view of the absence of recent information on its extent of occurrence, status and ecological requirements.


Stephen Richards, Fred Parker 2004. Litoria zweifeli. The IUCN Red List of Threatened Species 2004: e.T55788A11356317. .Downloaded on 23 February 2019


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