Atelopus arthuri Peters, 1973

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

Atelopus arthuri Peters, 1973, Smithson. Contrib. Zool., 145: 10. Holotype: USNM 193470, by original designation. Type locality: "15 km N of Pallatanga, Chimborazo Province, Ecuador, at an altitude between 2800 and 2860 m".

Common Names

Arthur's Harlequin Frog (Coloma and Duellman, 2025, Amph. Ecuador. Vol. 2: xxx). 

Rana Arlequín de Arthur (Spanish: Coloma and Duellman, 2025, Amph. Ecuador. Vol. 2: xxx).

Arthur's Stubfoot Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 39).

Distribution

Known only from three localities on the Pacific versant of the Cordillera Occidental of Ecuador in the provinces of Chimborazo and Bolívar, 645 to 901 m elevation, in humid montane forest and subparamo.

Geographic Occurrence

Natural Resident: Ecuador

Endemic: Ecuador

Comment

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: 161. Cisneros-Heredia and Rueda-Almonacid, 2005, in Rueda-Almonacid et al. (eds.), Ranas Arlequines: 58, provided a brief account and regarded the species as extinct. Coloma and Duellman, 2025, Amph. Ecuador. Vol. 2: 202–203, provided an account, with photographs, which summarized identification, adult morphology, systematics, natural history, distribution (including a dot map for Ecuador), and conservation. 

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