Crassiovis Frog

The Bander Baru frog, also called the Korinchi frog or Kerinci cascade frog, now placed in the genus Sumaterana, is a true frog endemic to Sumatra. It lives in primary submontane and montane rainforest along streams above 700 m and is especially common at around 1,000 m. It can occur in slightly disturbed forest, and the tadpoles use ventral suckers to cling to rocks in fast-moving streams (Wikipedia, general species account).