Chalcorana raniceps

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.[2] It is endemic to Borneo, including Brunei Darussalam, Kalimantan (Indonesia), and Sarawak (Malaysia), although it is likely to occur more widely.[2] Previously mixed with Chalcorana chalconota (treated as a junior synonym or a subspecies) 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.[2][3]

Chalcorana raniceps
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Ranidae
Genus: Chalcorana
Species:
C. raniceps
Binomial name
Chalcorana raniceps
(Peters, 1871)
Synonyms[2]
  • Polypedates raniceps Peters, 1871
  • Rana raniceps (Peters, 1871)
  • Hylarana raniceps (Peters, 1871)

Description

Chalcorana raniceps are relatively small frogs: adult males measure 28–34 mm (1.1–1.3 in) and females 33–42 mm (1.3–1.7 in) in snout–vent length.[3] 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 but is much smaller. Tadpoles are conspicuous with dark markings and red gills on light brown to yellow background; presumably, they are poisonous.[4]

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.[4]

References
  1. Peter Paul van Dijk; Djoko Iskandar; Robert Inger; Indraneil Das; Sushil Dutta; S.P. Vijayakumar (2016) [errata version of 2004 assessment]. "Chalcorana raniceps". IUCN Red List of Threatened Species. 2004: e.T58704A89367776. doi:10.2305/IUCN.UK.2004.RLTS.T58704A11824515.en.
  2. Frost, Darrel R. (2019). "Chalcorana raniceps (Peters, 1871)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 23 March 2019.
  3. Inger, Robert F.; Stuart, Bryan L. & Iskandar, Djoko T. (January 2009). "Systematics of a widespread Southeast Asian frog, Rana chalconota (Amphibia: Anura: Ranidae)". Zoological Journal of the Linnean Society. 155 (1): 123–147. doi:10.1111/j.1096-3642.2008.00440.x.
  4. Haas, A.; Das, I. & Hertwig, S.T. (2019). "Chalcorana raniceps White-lipped Frog". Frogs of Borneo. Retrieved 24 March 2019.
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