This species has been recorded from disjunct areas in north-east India. The main part of the distribution appears to be within central and western Nagaland; a second population has been reported from the Pakhui Wildlife Sanctuary and nearby Nameri National Park in Assam. Reports of this species from Manipur by Dutta (1997) require further investigation and are not mapped here. It is likely to occur somewhat more widely. It is present at elevations of 200-1,600m asl.
Habitat and Ecology
It is largely aquatic and associated with hill streams in wet tropical evergreen forest. Breeding occurs in streams, and the males guard the developing tadpoles.
It is considered to be a rare species.
The major threat to this species is the pollution of streams by toxins used to capture fish.
The species has been reported from Nameri National Park and Pakhui Wildlife Sanctuary in Assam. Recent field studies have been undertaken by Sengupta at Nameri and Pakhui (from 2000 to 2001), and by Bardoloi and Ao at Sanuoru, Rukhrona and Jakhama, in Nagaland (from 2000 to 2002). It is protected by national legislation.
Red List Status
Listed as Vulnerable because its Extent of Occurrence is less than 20,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its forest habitat in northeastern India.
Sushil Dutta, Saibal Sengupta, Sabitry Bordoloi 2004. Pterorana khare. The IUCN Red List of Threatened Species 2004: e.T58488A11776771. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58488A11776771.en .Downloaded on 20 February 2019