This species is known from the Bagu Yoma hills of Myanmar through peninsular Thailand, Phuket Island, and perhaps also to northern Thailand and northern Peninsular Malaysia (Bourret 1942; Taylor 1962; Chan-ard et al. 1999). It is also present on Langkawi Island (Malaysia), and the Thai islands of Terutao, Rawi and Ladang. Its range largely overlaps with that of Limnonectes doriae. It probably occurs more widely than current records suggest, especially in areas between known sites.
Habitat and Ecology
The habitat for this species has not been recorded, but it presumably lives in streams in evergreen forest.
No reliable data are available regarding its population status, due to possible confusion with L. doriae and L. pileata.
No specific threats are known for this species, although it could presumably be affected by forest degradation and hydrological changes due to smallholder farming and logging.
It is likely to occur in several protected areas in peninsular Thailand and beyond. The absence of records from protected areas is more an issue of identification difficulties rather than the absence of survey efforts. Clarification of the taxonomy of this species is therefore needed. Safeguarding protected areas in the Thai-Malay peninsula should be the main objective for the conservation of this species.
This species is difficult to identify with certainty, especially in relation to Limnonectes doriae, L. pileata and L. plicatella.
Peter Paul van Dijk, Norsham Yaakob 2004. Limnonectes macrognathus. In: IUCN 2014