[1] These frogs grow to 4.1 cm (1.6 in) long; males are smaller than females.

Color is extremely variable, ranging from brown to mottled mossy green.

[3] The rufous-eyed brook frog is endemic to the mountainous regions of Costa Rica, and can be found on the Caribbean and Pacific slopes from 700 to 1,600 m (2,310 to 5,250 ft) asl.

This species favors humid forests, and lives in foliage alongside streams.

[3] Though threatened by habitat destruction and uncommon within its range, the overall population is believed to be stable.