''Sylvirana'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

true frog True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North Am ...

s, family Ranidae, found in South and East

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an ...

, from northeastern India in west to China in the north, Taiwan in the east, and Thailand in the south. Originally proposed as a

subgenus In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed betw ...

of ''

Rana Rana may refer to: Astronomy * Rana (crater), a crater on Mars * Delta Eridani or Rana, a star People, groups and titles * Rana (name), a given name and surname (including a list of people and characters with the name) * Rana (title), a histor ...

'' in 1992, it has been considered both a full genus and a

synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are al ...

of ''

Hylarana ''Hylarana'', commonly known as golden-backed frogs, is a genus of true frogs found in tropical Asia. It was formerly considered highly diverse, containing around 84 to 96 valid species, but taxonomic revision resulted in a major change in the c ...

''. Its current recognition at generic level stems from molecular genetic analyses published in 2015.

Description

''Sylvirana'' are generally medium-size frogs with robust bodies. They have similar postocular masks as in ''

Papurana ''Papurana'' is a genus of frogs in the family Ranidae, "true frogs". They are known from Southeast Asia, New Guinea, and northern Australia. ''Papurana daemeli'' is the only ranid frog found in Australia. Taxonomy ''Papurana'' was originally i ...

''. The upper lip is gray, off-white, or occasionally, mottled. The dorsum is shagreened with spicules, or it can be warty. The dorsolateral folds a medium-sized and well-developed, either pale or the same color as the dorsum. The flanks have dark coloration below lateral ridges that fades to pale with well-defined dark spots. Males have paired

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 ...

that may be internal or external.

Species

There are 12 recognized species:

References

{{Taxonbar, from=Q20722213 True frogs Amphibian genera Amphibians of Asia