Trachycephalus hadroceps (Duellman and Hoogmoed, 1992)

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Trachycephalus > Species: Trachycephalus hadroceps

Hyla hadroceps Duellman and Hoogmoed, 1992, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 147: 3. Holotype: KU 60720, by original designation. Type locality: "area north of Acarai Mountains, west of New River (ca. 02° N, 58° W), Rupununi District, Guyana".

Phrynohyas hadrocepsLescure and Marty, 2000, Collect. Patrimoines Nat., Paris, 45: 192.

Trachycephalus hadrocepsFaivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 111.

English Names

New River Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 55).


Extreme southern Guyana; French Guiana; Biological Reserve Maicuru and Caxiuanã National Forest in Pará State, and eastern Pará and Amapá, Brazil; southern Suriname.

Geographic Occurrence

Natural Resident: Brazil, French Guiana, Guyana, Suriname


Lescure and Marty, 2000, Collect. Patrimoines Nat., Paris, 45: 192–194, provided a photo and brief account for French Guiana. See Cole, Townsend, Reynolds, MacCulloch, and Lathrop, 2013, Proc. Biol. Soc. Washington, 125: 4198, for brief account and records for Guyana. Avila-Pires, Hoogmoed, and Rocha, 2010, Bol. Mus. Parense Emilio Goeldi, Cienc. Nat., 5 : 13–112, reported the species in Brazil for the first time, in the Biological Reserve Maicuru, located in the southern Guiana Shield in Pará State, Brazil. Pinheiro, Santos-Costa, and Bitar, 2022, Herpetol. Notes, 15: 199–201, reported the species from Caxiuanã National Forest, also from Pará State, Brazil, situated on the southern bank of the Amazon, between the Xingu and Tocantins Rivers. Tavares-Pinheiro, Lopes, Figueiredo, Sousa, Costa-Campos, and Fouquet, 2022, Check List, 18: 405–410, reported the species from the Municipality of Porto Grande in the state of Amapá, Brazil, and provided a dot map including a record from southern Surinam and eastern Pará, Brazil. Taucce, Costa-Campos, Carvalho, and Michalski, 2022, Eur. J. Taxon., 836: 96–130, reported on distribution, literature, and conservation status for Amapá, Brazil. 

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