Gracixalus carinensis (Boulenger 1893)

Gracixalus carinensis, the Karin Hills bushfrog, also called the Burmese bubble nest frog, is a rarely seen Southeast Asian rhacophorid frog. It was originally described by Boulenger (1893) from seven individuals collected at 2900-3500 feet in altitude from the Karen Hills in eastern Myanmar, although has not been seen in Myanmar since. Subsequently it was collected in Thailand and northwest Vietnam, in moist montane forests at altitudes between 1250-2000 m asl. and some speculate as to its potential occurrence in the intervening Laos (Frost 2016).It is thought to breed by larval development, beside small streams (van Dijk and Swan 2004).

The full identity and distribution of G. carinensis, however, is not clear. A molecular analyses of Vietnamese specimens (Matsui et al. 2015) indicates that these are a different species from the Myanmar type specimens. More sampling and investigation is needed to understand the Karin Hills bushfrog. Based on its collection locations, the IUCN suggests that it may be threatened by habitat disruption and agricultural encroachment but there are too few known occurrences of this species to understand its population and distribution (van Dijk and Swan 2004).

Gracixalus carinensis, also known as the Burmese bubble-nest frog, brown Carin tree frog and Karin Hills bush frog, is a species of frog in the family Rhacophoridae from Thailand, Burma, and Vietnam.