Rhacophorus (Leptomantis) exechopygus Ziegler and Köhler, 2001
The cave-dwelling tree frog (Rhacophorus spelaeus) is a frog. Scientists have seen it in exactly one place, a limestone cave in Laos, 140 meters above sea level.[2][3][1]
Orlov NL; Gnophanxay S; Phimminith T; Phomphoumy K (2010). "A new species of Rhacophorus (Amphibia: Anura: Rhacophoridae:Rhacophorinae) from Khammouan Province, Lao PDR". Russian J Herpetology. 16: 295–303.