Amolops larutensis — Larut Torrent Frog
Some other names for this species:
Larut Sucker Frog, Torrent Frog, Southern Pad-disked Frog, Larut Hill Cascade Frog
Torrent frogs spend their time near fast-moving streams. You might think this was a bad idea for a fairly small frog. What if they fall into the fast-moving streams? Won't they be knocked around and carried far downstream? But they are great swimmers and have very strong grips, so they think nothing of escaping predators by jumping into the water, swimming hard to some nearby slippery moss-covered boulder, and then casually grabbing on with their toe pads and climbing to safety.
Amolops larutensis are widespread and common in Peninsular Malaysia, as long as you look near fast-moving streams.