Cophixalus tridactylus
family: Microhylidae
subfamily: Asterophryinae
Species Description: Guenther, R. 2006. Two new tiny Cophixalus species with reduced thumbs from the west of New Guinea. Herpetozoa 19: 59-75.
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: Indonesia, Papua New Guinea


View distribution map using BerkeleyMapper.


From the IUCN Red List Species Account:


Range Description

This species is known only from the eastern slopes of the Wondiwoi Mountains at the base of the Wandammen Peninsula at 400 to 800m a.s.l. (approximately 2°58’S, 134°38’E) in the northwestern part of Papua Province in Indonesian New Guinea. It probably occurs more widely (R. Günther, pers. comm.).

Habitat and Ecology

All specimens of this species have been located in closed-canopy primary rainforest. They prefer loamy slopes but have also been found on horizontal areas on the ground in small valleys. When calling they perch without exception on the surface of the ground where they stay on bare humus or clay soil, or on, or in, leaf litter. The species can probably survive in secondary forest, but not in completely opened-up areas (R. Günther, pers. comm.). The species presumably breeds by direct development, depositing its eggs in damp terrestrial habitats, without dependence on aquatic ecosystems.


It is at least locally common within its small range, as several hundred calling males were registered along a strip about 100 m wide and 4 km long strip. Loamy slopes between 600 and 700 m a.s.l. are most densely populated.

Population Trend


Major Threats

It is impacted by clear-felling and selective logging at its only known site, which has taken place after the construction of a road inside the protected area in 1997-1998 (R. Günther, pers. comm.).

Conservation Actions

Its only known site is in a protected area, but this has not prevented logging from taking place. Effective protected area management is needed. Surveys are needed to determine the status, distribution and ecological requirements of the species, and to determine whether or not there are any threats. If its range proves to be genuinely small, a protected area should be established.

Red List Status

Data Deficient (DD)


Listed as Data Deficient since it has only recently been described, and there is still very little known about its extent of occurrence, area of occupancy, status and ecological requirements.


Rainer Günther 2008. Cophixalus tridactylus. The IUCN Red List of Threatened Species 2008: e.T135780A4200394. .Downloaded on 11 December 2018


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