Craugastor rupinius

The specific name rupinius is from Latin rupina, meaning "rocky chasm", in reference to the rocky stream environments this species inhabits.[3]

Adult males grow to 40 mm (1.6 in) and females to 72 mm (2.8 in) in snout–vent length. The upper eyelids have a few scattered, large tubercles. The canthus rostralis is moderately sharp and tympanum is distinct; supratympanic fold is moderately developed. Dorsal skin is rugose with scattered large tubercles. The coloration of the dorsum varies: various shades of brown, yellow-brown, reddish brown, or live-brown are all recorded. Some females show a whitish or pale yellow vertebral line or stripe. Most individuals have a black interorbital line. Some individuals have dark limb bars. The iris is gold or copper-colored.[3]

Its natural habitats are steep, rocky streams, primarily in premontane wet forests, but also in lowland and lower montane wet forests, between 400 and 2,000 m (1,300 and 6,600 ft) above sea level. It also occurs secondary forests and shade coffee plantations. While a common species, it is threatened by habitat loss, and potentially, chytridiomycosis.[1]