Nanorana is a genus of dicroglossid frogs that are found in the Himalayan region of Asia.
Common names of these frogs reflect the complex taxonomic history of the genus (see below) and include Yunnan slow frogs (or simply slow frogs) and High Himalaya frogs (for the now-synonymized genus Altirana).
Distribution This genus has a wide distribution across Asia in the Himalayan region, central China and northern Indochina. Their range includes northern Pakistan, northern India, Nepal, western China east to montane southern China and southeast to Myanmar, Thailand, Laos, and northern Vietnam.
Taxonomy The taxonomy of true frogs and their allies has been subject to numerous changes during the last decade and is not yet fully settled. Nanorana in particular has seen big changes. As currently delineated, Nanorana is a quite large genus with 28 species, resulting from considering Chaparana, Paa, and Feirana as junior synonyms.
Currently these taxa may be recognized as subgenera, but their delineation is not entirely settled and not all species have been assigned to subgenera. Species at one point placed in these subgenera might currently be placed also in genera other than Nanorana such as Quasipaa, Ombrana or Allopaa.
Species The following species are recognised in the genus Nanorana:Tang, S., Liu, S., & Yu, G. (2023). A New Species of Nanorana (Anura: Dicroglossidae) from Northwestern Yunnan, China, with Comments on the Taxonomy of Nanorana arunachalensisand Allopaa. Animals, 13(21), 3427. https://doi.org/10.3390/ani13213427
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