Osteocephalus yasuni Ron and Pramuk, 1999

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Osteocephalus > Species: Osteocephalus yasuni

Osteocephalus yasuni Ron and Pramuk, 1999, Herpetologica, 55: 435. Holotype: QCAZ 11336, by original designation. Type locality: "at the Yasuní Scientific Research Station (76° 24′ 19″ W, 00° 04′ 32″ S; altitude 230 m), Provincia del Napo, Ecuador".

English Names

None noted.


Upper Amazon Basin in Ecuador within a latitudinal range encompassed by the Rio Napo to the north and the Rio Yasuni to the south; also known from two localities near Iquitos, Departamento Loreto, in northeastern Peru, Ucayali Department (Regional Conservation Area Imiría), in Amazonian central Peru, as well as in adjacent Amazonas, Colombia, all localities 180-250 m elevation.

Geographic Occurrence

Natural resident: Colombia, Ecuador, Peru


Colombia record provided by Lynch, 2002, Rev. Acad. Colomb. Cienc. Exact. Fis. Nat., 26: 289-292. Cisneros-Heredia, 2007, Herpetozoa, Wien, 19: 183, provided a record from Tiputini Biodiversity Station, 31 km east of the type locality and discussed aspects of the diagnosis. Cisneros-Heredia, 2007, Herpetozoa, Wien, 19: 183, provided a new record and documented ontogenetic changes in coloration. In the Osteocephalus leprieurii species group of 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: 351-380. Moravec, Arista-Tuanama, Gagliardi-Urrutia, and Gvoždík, 2016, Acta Soc. Zool. Bohem., 80: 317–341, provided the records from the department of Ucayali, Amazonian Peru. Metcalf, Marsh, Torres Pacaya, Graham, and Gunnels, 2020, Herpetol. Notes, 13: 753–767, reported the species from the Santa Cruz Forest Reserve, Loreto, northeastern Peru.  

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