Eleutherodactylus hypostenor Schwartz, 1965, Bull. Mus. Comp. Zool., 132: 498. Holotype: MCZ 43187, by original designation. Type locality: "10.5 mi. (16.8 km) S Cabral, 3500 feet (1060 m), Barahona Province, República Dominicana".
Eleutherodactylus (Pelorius) hypostenor — Hedges, 1989, in Woods (ed.), Biogeograph. W. Indies: 329. Heinicke, Duellman, and Hedges, 2007, Proc. Natl. Acad. Sci. USA, Suppl. Inform., 104: Table 2.
Pelorius hypostenor — Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 362.
Cabral Robber Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 75).
Southwestern Hispaniola; the Tiburon Peninsula of Haiti, east into the Sierra de Baoruco of the Dominican Republic, 670-1070 m elev.
In the Eleutherodactylus inoptatus group, according to Schwartz, 1965, Bull. Mus. Comp. Zool., 132: 498. See Schwartz, 1984, Cat. Am. Amph. Rept., 346: 1-2, for review. In the more exclusive Eleutherodactylus ruthae group of Hedges, 1989, in Woods (ed.), Biogeograph. W. Indies: 329. In the Eleutherodactylus (Pelorius) ruthae group of Lynch and Duellman, 1997, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 23: 226. In the Eleutherodactylus (Pelorius) ruthae species series of Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 86. See photograph, map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 346.
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