Osteocephalus verruciger (Werner, 1901)

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

Hyla verrucigera Werner, 1901, Verh. Zool. Bot. Ges. Wien, 51: 601. Syntypes: ZMB 16589 and ZMH A00946 according to Hallermann, 1998, Mitt. Hamburg. Zool. Mus. Inst., 95: 198. Type locality: "Ecuador".

Hyla riopastazae Andersson, 1945, Ark. Zool., 37A(2): 72. Holotype: NHRM 1960 according to Duellman, 1977, Das Tierreich, 95: 150. Type locality: "Rio Pastaza, 1840 m", eastern Ecuador; restricted to "Baños, Río Pastaza, Provincia Tungurahua, Ecuador", by Duellman, 1977, Das Tierreich, 95: 150. Synonymy by Trueb and Duellman, 1970, Copeia, 1970: 601.

Hyla orcesi Funkhouser, 1956, Zoologica, New York, 41: 78. Holotype: CAS-SU 13150, by original designation. Type locality: "[Río] Pacayacu, a stream that flows into the Cotapino, drainage of the Suno, Río Napo region, eastern Ecuador; alt. 600-650 mtr." Synonymy by Trueb and Duellman, 1970, Copeia, 1970: 601.

Osteocephalus orcesiCochran and Goin, 1970, Bull. U.S. Natl. Mus., 288: 317.

Osteocephalus verrucigerusTrueb and Duellman, 1970, Copeia, 1970: 601. Incorrect subsequent spelling.

Osteocephalus verruciger — Duellman, 1985, in Frost (ed.), Amph. Species World: 167.

English Names

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


Lower Amazonian slopes of Andes from Colombia (1400–2000 m elevation) to Provincia Morona Santiago, Ecuador, and 203 km to the southeast in the Cerro Kampankis area of Loreto, Peru and into Caqueá, Colombia. See comment about cryptic species. 

Geographic Occurrence

Natural Resident: Colombia, Ecuador, Peru


Almendáriz C. and Orcés, 2004, Rev. Politécnica, Quito, 25: 118, provided distributional data for Ecuador. Ron, Toral, Venegas, and Barnes, 2010, ZooKeys, 70: 67–92, provided an mtDNA which showed samples of Osteocephalus verruciger being noninclusive with respect to Osteocephalus buckleyi, suggesting either introgressive hybridization or cryptic species; they also suggested (p. 85) that records from Peru are based on misidentified Osteocephalus mimeticus. In the Osteocephalus buckleyi 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. Catenazzi and Venegas, 2012, in Pitman et al. (eds.), Rapid Biol. Social Invent. Rep. 24 268, provided the Peruvian record and dicussed the range. Batallas-Revelo and Brito-M., 2016, Rev. Mexicana Biodiversidad, 87: 1292–1300, reported on vocalizations from Sangay National Park, southeastern Ecuador. Chasiluisa, Caminer, Varela-Jaramillo, and Ron, 2020, Neotropical Biodiversity, 6: 21–36, noted that this nominal species is composed of four lineage-species of which the name-bearing clade is found in  Napo and Morona-Santiago, Ecuador. Presumably the other species will be named in other papers. 

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