Eleutherodactylus orcesi Lynch, 1972, Herpetologica, 28: 142. Holotype: KU 130316, by original designation. Type locality: "on the Guaranda-Ambato road on the southwest slope of Nevado Chimborazo, about 5 km SW of the Bolivar-Chimborazo border, Bolivar Province, Ecuador, 3800 m."
Eleutherodactylus (Eleutherodactylus) orcesi — Lynch, 1996, in Powell and Henderson (eds.), Contr. W. Indian Herpetol.: 154. Lynch and Duellman, 1997, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 23: 229.
Pristimantis orcesi — Heinicke, Duellman, and Hedges, 2007, Proc. Natl. Acad. Sci. USA, Suppl. Inform., 104: Table 2.
Pristimantis (Pristimantis) orcesi — Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 125.
Bolivar Robber Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 77).
Páramos to the north and east of Guaranda, and to the west of Quito, Ecuador, at elevations between 3160-3800 m.
In the Eleutherodactylus (Eleutherodactylus) martinicensis series, Eleutherodactylus orcesi group according to Lynch and Duellman, 1997, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 23: 229. See brief account by Lynch, 1981, Misc. Publ. Mus. Nat. Hist. Univ. Kansas, 72: 29-30. Almendáriz and Orcés, 2004, Politécnica, Quito, 25: 125-126, provided distributional data for Ecuador.
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