Javan torrent frog

The Javan torrent frog (Wijayarana masonii) is a species of frog in the family Ranidae. It is endemic to Java, Indonesia.^[2] It is found in Mount Halimun Salak National Park, Ujung Kulon National Park, and Gunung Gede Pangrango National Park in West Java, as well as in Dieng Nature Reserve in Central Java.

Javan torrent frog
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Anura
Family:	Ranidae
Genus:	Wijayarana
Species:	W. masonii
Binomial name
Wijayarana masonii (Boulenger, 1884)
Synonyms
Rana masonii Boulenger, 1884 Huia masonii Iskandar, 1998

Its natural habitats are clear, fast-flowing streams and torrents in forests and in somewhat more open areas. It is a common species within this specific habitat, which is being threatened by sedimentation of streams as well as agro-chemical pollution.^[1]

Javan torrent frog males use high-frequency communication to overcome the noise of their riverine habitats that is dominated by low frequencies. The second harmonic of the calls is ultrasonic. Warbles are highly diverse and may function as vocal signatures.^[3]

See also

• Concave-eared torrent frog (Odorrana tormota), the first frog demonstrated to both produce and perceive ultrasonic frequencies
• Hole-in-the-head frog (Huia cavitympanum), a truly ultrasonic frog