Osteocephalus vilarsi (Melin, 1941)

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

Hyla (Trachycephalus) vilarsi Melin, 1941, Göteborgs K. Vetensk. Vitterh. Samh. Handl., Ser. B, 1: 40. Holotype: NHMG 488, according to Duellman, 1977, Das Tierreich, 95: 150. Type locality: "Taracuá, Rio Uaupés, [Amazonas,] Brazil".

Osteocephalus vilarsiJungfer, 2010, Zootaxa, 2407: 28. 

English Names

None noted.


Northern half of the state of Amazonas, Brazil, and extreme southern part of the state of Amazonas, Venezuela; reported in Vaupés and Guanía provinces in eastern Colombia.  

Geographic Occurrence

Natural Resident: Brazil, Colombia, Venezuela


See account by Jungfer, 2010, Zootaxa, 2407: 41-44, who removed this species from the synonymy of Osteocephalus taurinus, where it had been placed by Bokermann, 1966, Lista Anot. Local. Tipo Anf. Brasil.: 64. Tentatively included in the Osteocephalus taurinus 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. Rediscovered after 75 years by Ferrão, Moravec, Moraes, Carvalho, and Gordo, 2019, PeerJ, 7(e8160): 1–35, who detailed the morphology and color variationi and expanded the known rang, and on the basis of molecular data transferred it to the Osteocephalus planiceps group. Osorno-Muñoz, Gutiérrez-Lamus, and Caicedo-Portilla, 2021, In Oviedo et al., Plan de Manejo Ambiental: 93–105 (not seen by DRF) reported the species from Vaupés and Guanía provinces in Colombia. 

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