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 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. Crnobrna, Santa-Cruz Farfan, Gallegos, López-Rojas, Llanqui, Panduro Pisco, and Kelsen Arbaiza, 2023, Check List, 19: 444, provided a record from Ucayali Department, central-eastern Peru.  

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