Hyla brevifrons Duellman and Crump, 1974, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 23: 15. Holotype: KU 126370, by original designation. Type locality: "Santa Cecilia, Provincia Napo, Ecuador".
Dendropsophus brevifrons — Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 93.
Crump Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 54).
Upper Amazon Basin of Colombia, Ecuador, Peru, and Bolivia, as well as Guyana, southern and western Surinam, and French Guiana, as well as Amazonas, Brazil.
In the Dendropsophus parviceps group of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 93. In the Hyla parviceps group according to the original publication and Duellman, 2001, Hylid Frogs Middle Am., Ed. 2: 859. De la Riva, Köhler, Lötters, and Reichle, 2000, Rev. Esp. Herpetol., 14: 57, and Köhler, 2000, Bonn. Zool. Monogr., 48: 69, consider this species possibly to occur in Bolivia. Lescure and Marty, 2000, Collect. Patrimoines Nat., Paris, 45: 156-157, provided a photo and brief account for Guiana. Lynch, 2006, Caldasia, 28: 140, characterized the range in Colombia. Ernst, Rödel, and Arjoon, 2005, Salamandra, 41: 179-194, provided a record for central Guyana and noted records in Amazonas, Brazil. See account for Surinam population by Ouboter and Jairam, 2012, Amph. Suriname: 110-112.
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