''Kurixalus naso'', also known as uphill tree frog, long-snouted treefrog, and Annandale's high altitude frog, is a species of

frog A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-f ...

in the family

Rhacophoridae The Rhacophoridae are a family of frogs that occur in tropical sub-Saharan Africa, South India and Sri Lanka, Japan, northeastern India to eastern China and Taiwan, south through the Philippines and Greater Sundas, and Sulawesi. They are commonly ...

. It is found in northeastern

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

, southern

Tibet Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the plateau are some other ethnic groups such as Monpa people, ...

, and

Bhutan Bhutan (; dz, འབྲུག་ཡུལ་, Druk Yul ), officially the Kingdom of Bhutan,), is a landlocked country in South Asia. It is situated in the Eastern Himalayas, between China in the north and India in the south. A mountainous ...

. A related but unnamed species is found in

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

and

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

(China). Furthermore, it is possible that ''

Kurixalus yangi ''Kurixalus'' is a genus of frogs in the family Rhacophoridae. The taxonomy of small rhacophids is difficult and has been subject to many revisions, but molecular genetic data do support monophyly of ''Kurixalus''. These frogs are distributed fr ...

'' (Yunnan, Myanmar, and NE India) is 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 ...

of ''Kurixalus naso''.

Description

''Kurixalus naso'' is a small frog, growing to about in

snout–vent length Snout–vent length (SVL) is a morphometric measurement taken in herpetology from the tip of the snout to the most posterior opening of the cloacal slit (vent)."direct line distance from tip of snout to posterior margin of vent" It is the most c ...

; Yu and colleagues report lengths up to for males. The snout is noticeably pointed. The limbs have serrated dermal fringes. The chin and breast are granular. Dorsal coloration is generally brownish, mixed with dark markings. The ventral surface is shaded posteriorly with dark spots. The

iris Iris most often refers to: *Iris (anatomy), part of the eye *Iris (mythology), a Greek goddess * ''Iris'' (plant), a genus of flowering plants *Iris (color), an ambiguous color term Iris or IRIS may also refer to: Arts and media Fictional enti ...

is golden. Males have a single, internal

vocal sac The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call. The presence or development of the vocal sac is one way o ...

Habitat and conservation

''Kurixalus naso'' is an

arboreal Arboreal locomotion is the Animal locomotion, locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some animals may scale trees only occasionally, but others are exclusively arboreal. Th ...

species occurring in tropical forest, shrubland and grasslands 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 ...

. Breeding takes place in small, temporary water pools. The overall population of ''Kurixalus naso'' is believed to be small. It is threatened by

deforestation Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated d ...

. It is present in two protected areas in northeastern India,

Dihang-Dibang Biosphere Reserve Dihang-Dibang or Dehang-Debang is a biosphere reserve constituted in 1998. It is in the Indian state of Arunachal Pradesh. The Mouling National Park and the Dibang Wildlife Sanctuary are located fully or partly within this biosphere reserve. The ...

and

Mouling National Park Mouling National Park is a national park located in the Indian state of Arunachal Pradesh, spread primarily over the Upper Siang district and parts of the West Siang and East Siang district. It was the second national park to be created in the ...

References

{{Taxonbar, from=Q28056226 naso Amphibians of Bhutan Frogs of China Frogs of India Fauna of Tibet Taxa named by Nelson Annandale Amphibians described in 1912 Taxonomy articles created by Polbot