Scytopis boulengeri Cope, 1887, Bull. U.S. Natl. Mus., 32: 12. Holotype: USNM 13974, according to Cochran, 1961, Bull. U.S. Natl. Mus., 220: 77. Type locality: "Nicaragua".
Hyla boulengeri — Günther, 1901, Biol. Centr. Amer., Rept. Batr., Part 164: 267.
Ololygon boulengeri — Fouquette and Delahoussaye, 1977, J. Herpetol., 11: 392.
Scinax boulengeri — Duellman and Wiens, 1992, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 151: 10, 21.
Boulenger's Snouted Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 63).
Caribbean lowlands of Central America from Nicaragua to Panama; Pacific lowlands of Costa Rica and eastern Panama; eastern flank of the Cordillera Central from Antioquia to Caldas, Colombia, 600 m elevation.
For discussion (as Hyla boulengeri) see Duellman, 1970, Monogr. Mus. Nat. Hist. Univ. Kansas: 200-204; Savage and Heyer, 1969, Rev. Biol. Tropical, 16: 1-127; and Duellman, 1972, Zool. Meded., Leiden, 47: 180-181. In the Scinax ruber clade, Scinax rostratus group of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 96-97. See also note by Duellman, 2001, Hylid Frogs Middle Am., Ed. 2: 854. See account by Savage, 2002, Amph. Rept. Costa Rica: 343-345. McCranie, 2007, Herpetol. Rev., 38: 38, summarized the departmental distribution in Honduras. See comments by Sunyer, Páiz, Dehling, and Köhler, 2009, Herpetol. Notes, 2: 189-202, regarding Nicaraguan populations.
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