Odorrana nasuta

Odorrana nasuta (Hainan bamboo-leaf frog) is a species of frog in the family Ranidae, endemic to Hainan, China.^[2] It occurs near streams in forested regions at elevations of 350–850 m (1,150–2,790 ft) above sea level. Breeding takes place in streams. The species is threatened by habitat loss caused by smallholder farming and clear-cutting of forests.^[1]

The genus Odorrana, commonly known as odorous frogs, is a group of frogs (Rinadae) which can be found mostly in East Asia. These frogs are typically associated with fast-flowing mountain streams and often exhibit a distinctive pointed snout. Odorrana currently includes 65 recognized species, with many endemic to China.^[3]

Key Characteristics and Distribution:

• Habitat: Odorrana frogs are predominantly found in and around fast-flowing streams, often inhabiting rocky areas or vegetation near water.
• Appearance: They are known for their relatively pointed snouts, which has led to common names like "tip-nosed frog".
• Geographic Range: Their range extends from the Ryukyu Archipelago of Japan, through southern China, Indochina, northeastern India, Myanmar, and the Malay Peninsula, and south to Sumatra and Borneo.
• Species Diversity: While the genus is relatively species-rich, with 65 species, more than half of them are found in southern China.
• Ultrasonic Communication: Some Odorrana species, like O. graminea, exhibit ultrasonic calls, likely an adaptation to communicate in noisy environments like fast-flowing streams.
• Systematics: The genus Odorrana is considered monophyletic, meaning all its members share a single common ancestor. However, the systematic relationships within the genus have been a subject of ongoing research and debate.
• Conservation Status: Several Odorrana species face threats like habitat loss and over-collection, and some are listed as endangered by the IUCN

Males measure 57–63 mm (2.2–2.5 in) and females 73–74 mm (2.9–2.9 in) in snout–vent length.^[4]