Bornean Opposite-fingered Tree Frog

About the Bornean Opposite-fingered Tree Frog

Feihyla inexpectata is a species of frog in the family Rhacophoridae. This recently (2014) described species is endemic to Malaysian Borneo and known from its type locality in the Maliau Basin Conservation Area, Sandakan Division, Sabah and from Danum Valley, also in Sabah. Common name Bornean opposite-fingered tree frog has been coined for it.

The specific name inexpectata is Latin and refers to the fact that finding a species of the genus Chiromantis, as the species was originally assigned to, was considered unexpected in Borneo given that the genus was previously only known from continental South-East Asia.

The type series consists of two adult males and a metamorphosing juvenile. The adult males measured 22.2–22.4 mm (0.87–0.88 in) in snout–vent length (SVL). The metamorph measured 17.9 mm (0.70 in) SVL and had a tiny tail stump. Females are unknown.

The head is wider than the body. The snout is truncated in the side view and sloping anteroventrally. The canthus rostralis is rounded. The eyes are large and protuberant. The tympanumis distinct and subcircular (not visible in the metamorph). The forelimbs are long and relatively robust. The fingers... Wikipedia →