Dryaderces pearsoni (Gaige, 1929)

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Dryaderces > Species: Dryaderces pearsoni

English Names

Pearson's Slender-legged Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 61).


Provisionally regarded as being only in northern Amazonian Bolivia, with a related cryptic species in the Tapajos and Madeira drainages of Amazonian Brazil (see comment).

Geographic Occurrence

Natural Resident: Bolivia, Brazil, Peru


Jungfer, Faivovich, Padial, Castroviejo-Fisher, Lyra, Berneck, Iglesias, Kok, MacCulloch, Rodrigues, Verdade, Torres-Gastello, Chaparro, Valdujo, Reichle, Moravec, Gvoždík, Gagliardi-Urrutia, Ernst, De la Riva, Means, Lima, Señaris, Wheeler, and Haddad, 2013, Zool. Scripta, 42: 359, noted an unnamed species that is found in the Upper Amazon Basin and lower Andean slopes from central Peru to northern Bolivia; previous records of nominal Osteocephalus pearsoni apply to this form. Ortiz, Moraes, Pavan, and Werneck, 2020, Vert. Zool., Senckenberg, 70: 357–366, reported on the molecular phylogenetics within the genus and restricted Dryaderces pearsoni to Bolivia, but mapped the similar unnamed species in Madeira and Tapajos drainage of Brazil, to the Bolivian border. 

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