Callimedusa atelopoides

Adult males measure 36–37 mm (1.4–1.5 in) and adult females 40–45 mm (1.6–1.8 in) in snout–vent length. The snout is bluntly rounded in dorsal view and truncate in profile. The parotoid gland is diffuse. The fingers and toes bear small discs. The limbs are relatively short. Skin is smooth dorsally. The dorsum is purplish brown and has scattered metallic green flecks. The flanks and ventral surfaces are bluish white with dark purple between the granules. The iris is silvery gray and has black flecks.[3]

The male advertisement call is a single "wort".[3]

C. atelopoides occurs in lowland primary tropical rainforest at elevations less than 200 m (660 ft) above sea level.[1] It is a terrestrial frog that is active on the ground or low vegetation at night.[1][3] The eggs are deposited on leaves and the tadpoles develop in temporary bodies of water. It is not present in modified habitats. It is a widespread but uncommon species that can locally suffer from habitat loss caused by, e.g., logging and agriculture. It is present in a number of protected areas.[1]