Eleutherodactylus variabilis Lynch, 1968, J. Herpetol., 2: 129. Holotype: KU 99011, by original designation. Type locality: "Limón Cocha, Napo, Ecuador, 300 meters".
Eleutherodactylus (Eleutherodactylus) variabilis — Lynch, 1996, in Powell and Henderson (eds.), Contr. W. Indian Herpetol.: 154. Lynch and Duellman, 1997, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 23: 234.
Pristimantis variabilis — Heinicke, Duellman, and Hedges, 2007, Proc. Natl. Acad. Sci. USA, Suppl. Inform., 104: Table 2.
Pristimantis (Pristimantis) variabilis — Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 128.
Variable Robber Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 80).
Amazon Basin and on the Amazonian slopes to about 1000 m elevation in southern Colombia, Ecuador, and northern Peru; presumably in Brazil.
In the Eleutherodactylus (Eleutherodactylus) martinicensis series, Eleutherodactylus unistrigatus group according to Lynch and Duellman, 1997, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 23: 234. Distribution records discussed by Lynch and Lescure, 1980, Bull. Mus. Natl. Hist. Nat. Paris, Sect. A, Zool., 2: 312. In the Pristimantis (Pristimantis) unistrigatus species group of Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 128. See Duellman and Lehr, 2009, Terrest.-breeding Frogs in Peru: 248-249, for brief account.
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