''Chalcorana macrops'' is a species of " true frog" in the family Ranidae. It is endemic to

Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...

, Indonesia. Common name Masarang frog has been coined for it. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

' refers to the large eyes of this frog.

Description

''Chalcorana macrops'' grows to at least in snout–vent length. The eyes are very large. The head is rather large with a rounded snout. The tympanum is distinct. The fingers are rather and long slender and have well-developed discs. The toes are two-thirds webbed and have discs that are somewhat smaller than the finger discs. Skin is smooth or with a few small warts dorsally. Dorsal colouration is olive-brown. The sides are greyish and marbled with dark brown. Males have an internal vocal sac.

Habitat and conservation

''Chalcorana macrops'' occurs along canopy-covered streams—its presumed breeding habitat—in primary and secondary lowland forests at elevations of

above sea level Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The comb ...

. It is threatened by habitat loss caused by smallholder farming. Also water pollution from agriculture is a threat. Some of its habitat is protected by the

Lore Lindu National Park Lore Lindu National Park is a protected area of forest on the Indonesian island of Sulawesi, in the province of Central Sulawesi. The Indonesian national park is 2,180 km2 covering both lowland and montane forests (200 to 2,610 meters abov ...

References

{{Taxonbar, from=Q24578728, from2=Q4670054 macrops Amphibians of Sulawesi Endemic fauna of Indonesia Amphibians described in 1897 Taxa named by George Albert Boulenger