Ansonia torrentis, sometimes referred to as Gunung Mulu Stream Toad, is a montane species that has been described from Gunung Mulu by Dring (1983) from 1800 m asl (ASW). 

It is a moderate-sized species; males measure 30–33 mm in snout-vent length. The sympatric Ansonia hanitschi is smaller (males <29 mm) and has a narrower head.

Males call on leaves of low plants on steep rock-faces edging a stream in pristine montane forest.