A new species of frog of the genus Xenorhina (Anura: Microhylidae) from the north coast ranges of Papua New Guinea

We describe a new species of Xenorhina from the Bewani and Hunstein Mountains of northwest Papua New Guinea. Unlike the six currently recognized species of Xenorhina, which inhabit leaf litter on the forest floor, the new species is remarkable in being arboreal. It differs from its congeners in possessing greatly expanded terminal discs on the fingers and toes, but lives in leaf litter that gathers in bird-nest ferns (Asplenium) and in moss encrusting trees and epiphytes, thus retaining the fossorial habits of its presumed ancestors. The new species is morphologically most similar to X. oxycephala and the calls of these two species ale very similar.