File-eared Tree Frog

''Polypedates otilophus'' is a species of frog in the family Rhacophoridae. It is endemic to Borneo where it is widespread and found in Brunei, Indonesia, and Malaysia, typically in the lowlands but sometimes as high as 1,100 m above sea level. This species has prominent, sharp ridges behind the eye, above the ear, referred to in its names.