A New Species of Polypedates from Sumatra, Indonesia (Amphibia: Anura)

Abstract

A rhacophorid tree frog from Sumatra that was once identified as Polypedates otilophus (Boulenger, 1893) is sufficiently divergent genetically and morphologically from topotypic specimens from Borneo as to be recognized as a distinct species. It is herein described as P. pseudotilophus sp. nov. The Sumatran frogs can be distinguished easily from the Bornean population by the possession of a much more weakly developed supratympanic bony crest, smoother dorsal skin, and a large, hourglass-shaped dark marking, instead of longitudinal stripes on the dorsum.