The distribution of this species is poorly understood: it is known from Papahag Island (type locality), Tawi-Tawi Island (2004 record, Languyan municipality, Tawi-tawi province; Philippines Red List Assessment Workshop May 2017), and a few other unconfirmed localities in the Sibutu Group in the Sulu archipelago in the southern Philippines.
Habitat and Ecology
This species inhabits undisturbed and disturbed streams and rivers in lower montane and lowland forests. Although there is limited ecological information, it is expected to breed in streams by larval development.
Until 2004, when the species was recorded (and found to be common) on Languyan Island (Philippines Red List Assessment Workshop May 2017), the species was only known only from the original collection, which took place before 1920. However, its population status remains unknown and the lack of subsequent records is due to a lack of herpetological work within its range.
The threats in the region where it was collected include deforestation through logging, and habitat conversion to agriculture, expanding human settlements, and nickel mining (Philippines Red List Assessment Workshop May 2017).
It is not known from any protected areas.
Field surveys are needed to gather new information on the range, population status, and habitat requirements of this species.
Red List Status
Data Deficient (DD)
Listed as Data Deficient in view of a lack of recent data and continuing uncertainties as to its extent of occurrence, population status and ecological requirements.
IUCN SSC Amphibian Specialist Group 2018. Pulchrana melanomenta. The IUCN Red List of Threatened Species 2018: e.T19242A114799546. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T19242A114799546.en .Downloaded on 19 January 2019