[1][3] The specific name torrentis refers to the habitat at its type locality, a stream running down a steep mountainside.

The fingers are sender and bear small terminal discs.

[2] Ansonia torrentis is known from beside a small, clear, mountain stream with a steep gradient at about 1,800 m (5,900 ft) above sea level.

[1] Males were mostly calling from low vegetation on rock faces bordering a stream section with steep water chutes and small rock pools.

[1] The known distribution of this species is within the Gunung Mulu National Park.