The Sharp-tailed Streamcreeper is about 15.5 cm long, with a dark brown body, a pale eyebrow, and white-scaled underparts. It uses streamside scrub and nests near water.
It is about 15.5 cm long, with a blackish-brown body, a whitish eyebrow, white scaling on the underside, and a black tail.
It uses shrubs along forest streams and builds a nest from plant fibres and leaves in a bank or rock cavity near water.
In São Paulo, Brazil, it moves along streams over the ground, rocks and fallen branches, searching leaf litter at the edge and rocks in the stream for prey.
It reaches down with its bill to take prey from water or leaf litter and also turns litter to expose hidden prey along the bank.
Observations from Brazil show it eating spiders, earthworms, adult and larval insects, and tadpoles.
An extinction-risk assessment has not been added yet.