Atelopus senex Taylor, 1952

Class: Amphibia > Order: Anura > Family: Bufonidae > Genus: Atelopus > Species: Atelopus senex

Atelopus senex Taylor, 1952, Univ. Kansas Sci. Bull., 35: 630. Holotype: R.C. Taylor 765, stated in error in the original publication as RCT 766, according to Lötters, 1996, Neotrop. Toad Genus Atelopus: 45; now FMNH 178224 according to Marx, 1976, Fieldiana, Zool., 69: 44. Type locality: "near [Desengaño] pass between Volcán Poás and Volcán Barba, western slope Volcán Poás, Pacific drainage, elev. app. 6800 ft.", Cantón de Santa Barbara, Provincia de Heredia, 2073 m elevation, Costa Rica. Savage, 1974, Rev. Biol. Tropical, 22: 89, commented on the type locality.

English Names

Pass Stubfoot Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 40).


Humid montane forest in central Costa Rica in the Cordilleras Volcánica and Talamanca in Costa Rica, 1100–2200 m elevation.

Geographic Occurrence

Natural Resident: Costa Rica

Endemic: Costa Rica


 Cocroft, McDiarmid, Jaslow, and Ruiz-Carranza, 1990, Copeia, 1990: 631–643, discussed the call. In the Atelopus ignescens group of Lynch, 1993, Alytes, 11: 77–87. See accounts by Savage, 1972, Herpetologica, 28: 81, and Savage, 2002, Amph. Rept. Costa Rica: 188–189. 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: 175. Kahn, Rada, and Sánchez-Pacheco, 2005, in Rueda-Almonacid et al. (eds.), Ranas Arlequines: 108, provided a brief account, illustration, and map. Köhler, 2011, Amph. Cent. Am.: 98–102, compared this to the other species of Central America and provided a map and photograph.

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