Tago's brown frog

It is widely distributed within Japan and found on Honshu, Shikoku, and Kyushu, as well as on some outlying islands.

It can also introgres with its sister species, Rana sakuraii.

[2] These frogs are found in mountainous areas close to streams in the leaf-litter, or underneath stones in the streams.

They lay their eggs in subterranean rivers, where the tadpoles grow into frogs.

In late spring their croaks can be heard from above ground.