''Chalcorana raniceps'', also known as the copper-cheeked frog, white-lipped frog, or Peters' Malaysian frog, is a species of " true frog" in the family Ranidae. It is endemic to Borneo, including Brunei Darussalam,

Kalimantan Kalimantan () is the Indonesian portion of the island of Borneo. It constitutes 73% of the island's area. The non-Indonesian parts of Borneo are Brunei and East Malaysia. In Indonesia, "Kalimantan" refers to the whole island of Borneo. In 2019, ...

( Indonesia), and Sarawak ( Malaysia), although it is likely to occur more widely. Previously mixed with ''

Chalcorana chalconota ''Chalcorana chalconota'' is a species of "true frog", family Ranidae. It is endemic to Indonesia and occurs in southern Sumatra, Java, Bali, and a few smaller islands. Populations previously assigned to this species now belong to a number of oth ...

'' (treated as a

junior synonym The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linna ...

or a

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

) and believed to have much wider distribution, its range was delimited to Borneo in the revision of "''Rana chalconota''" complex by Robert Inger and colleagues in 2009.

Description

''Chalcorana raniceps'' are relatively small frogs: adult males measure and females in snout–vent length. Colouration is mostly green, sometimes with brown back. The snout is long and pointed. Finger and toe tips have adhesive disks. The thighs may be reddish undersides. It resembles ''

Chalcorana megalonesa ''Chalcorana megalonesa'' is a species of true frog in the family Ranidae, the "true frogs". It is endemic to Borneo and is known from both Malaysia (Sarawak, Sabah) and Indonesia (Kalimantan). It was split off from ''Rana chalconota'' (now ''C ...

'' but is much smaller. Tadpoles are conspicuous with dark markings and red gills on light brown to yellow background; presumably, they are poisonous.

Habitat

''Chalcorana raniceps'' inhabits a broad range of lowland primary and secondary rainforest habitats. It breeds in ponds, intermittent streams, and quiet side pools of streams. Males call in small groups from twigs and vegetation 0.5–1.5 m above the ground.

References

{{Taxonbar, from=Q4667644 raniceps Endemic fauna of Borneo Amphibians of Brunei Amphibians of Indonesia Amphibians of Malaysia Amphibians described in 1871 Taxa named by Wilhelm Peters Amphibians of Borneo