Atelopus halihelos Peters, 1973, Smithson. Contrib. Zool., 145: 22. Holotype: AMNH 16716, by original designation. Type locality: "Ecuador: Morona-Santiago Province, Cordillera Cutucú".
Morona-Santiago Stubfoot Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 39).
Known only from the type locality in cloud forest of the Cordillera Cutucú, Morona-Santiago Province, Ecuador, ca. 1875 m elevation.
In the Atelopus flavescens group of Lynch, 1993, Alytes, 11: 77-87. 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: 168. Almendáriz and Nogales-Sornosa, 2005, in Rueda-Almonacid et al. (eds.), Ranas Arlequines: 82, provided a brief account, photograph, and map.
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