Atelopus boulengeri Peracca, 1904

Boulenger's harlequin toad



Taxonomy & Nomenclature

Synonym/s: Atelopus bicolor Noble, 1921


Conservation Status


Last record: 1984 (Jaynes et al., 2022)

IUCN RedList status: Critically Endangered (Possibly Extinct)





Biology & Ecology










Original scientific description:

Peracca, M. G. (1904). Rettili ed Amfibii in viaggio del Dr. Enrico Festa nell'Ecuador e regioni vicine. Bolletino dei Musei di Zoologia ed Anatomia Comparata della Università di Torino 1904: 1-41.


Other references:

Andreone, Franco et al. (2022). Threatened and extinct amphibians and reptiles in Italian natural history collections are useful conservation tools. Acta Herpetologica 17(1): 45-58. doi:10.36253/a_h-12349

IUCN SSC Amphibian Specialist Group. 2022. Atelopus boulengeri. The IUCN Red List of Threatened Species 2022: e.T54493A98641006. Accessed on 23 July 2022.

Jaynes, Kyle E. et al. (2022). Harlequin frog rediscoveries provide insights into species persistence in the face of drastic amphibian declines. Biological Conservation 276: 109784.

Santiago Ron, Luis A. Coloma, Martín R. Bustamante, Diego Cisneros-Heredia, Ana Almendáriz, Manuel Morales. (2004). Atelopus boulengeri. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. ( Downloaded on 10 September 2012.


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