Leptomantis harrissoni, common name Harrisson's flying frog or brown tree frog, is a species of frog in the family Rhacophoridae. It is endemic to northern Borneo.
This species is widely distributed in northern Borneo and occurs in Sarawak and Sabah (Malaysia), Brunei, and northern Kalimantan (Indonesia).[1]
Its natural habitat is primary or old secondary lowland rainforests in both flat and hilly terrain below 350 m of elevation. It is threatened by habitat loss.[1]
Leptomantis harrissoni can reach a length of about in males, of about in females. These medium-sized frogs have an angular and pointed snout and well developed dark hand webbing. They are basically brown.
Tadpoles can reach a length of about, They have a well developed and rather pointed tail fin, an ovoid body and a short snout. The basic color is dark brown.
Leptomantis harrissoni spends most of its life high up in the forest. Males call for breeding in water-containing holes located in the trunks of trees.[1] Eggs are laid in a foam nest attached to the bark above said tree holes.
These frogs use the skin membranes between their fingers as a kind of parachute to make real flights among the branches of trees of the forest (hence the common name of the species).