[1] Its tadpoles are adapted to fast-flowing mountain streams and easily recognizable by their divided upper lip with ribs on the outside.

Tadpoles are specialized for living in strong currents and have a heavy body.

The snout is broadly rounded with a relatively oral disk underneath it.

The body is flat below and has a large sucker, covering a larger portion of the abdomen.

[3] In contrast, and unusually, the tadpoles are easier to identify to species than the adults.