Atelopus longirostris, an harlequin frog or jambato, is a member of the family of true toads: Bufonidae. It has been recorded only in northern Ecuador (all Colombian records are attributed to different species). The scientific name of this species means: long-snout; and the species has been named in Spanish as the jambato hocicudo (long-snouted jambato).
The species has been classified as extinct, due to huge declines probably related to chytridiomycosis, climate change, among other synergistic causes. The species has not been recorded since 1989, despite some searching in historical localities.
Known from the western slopes of the northern Ecuadorian Andes in the provinces of Esmeraldas, Imbabura, Pichincha, and Cotopaxi, up to 2500 m elevation. It inhabits humid montane forests.
Atelopus longirostris has a slender body with long legs (males up to 35 mm, and females up to 47 mm). The dorsum is brown with yellow or cream rounded spots. The flanks are dark brown or black. The venter is whitish with some brown suffusion in the throat and chest.
- Bustamante; et al. (2004). "Atelopus longirostris". IUCN Red List of Threatened Species. Version 2006. International Union for Conservation of Nature. Retrieved August 2006. Check date values in:
|access-date=(help) Database entry includes a range map and justification for why this species is extinct
- Galvis, P.A. & Cisneros-Heredia, D.F. 2005. Atelopus longirostris. In: Rueda-Almonacid et al. Ranas Arlequines[permanent dead link]. Conservation International, Serie Libretas de Campo
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