Nymphargus anomalus (Lynch and Duellman, 1973)

Class: Amphibia > Order: Anura > Family: Centrolenidae > Subfamily: Centroleninae > Genus: Nymphargus > Species: Nymphargus anomalus

Centrolenella anomala Lynch and Duellman, 1973, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 16: 14. Holotype: KU 143299, by original designation. Type locality: "Río Azuela, 1740 m, Quito--Lago Agrio road, Provincia Napo, Ecuador".

Cochranella anomalaRuiz-Carranza and Lynch, 1991, Lozania, 57: 21.

Nymphargus anomalusCisneros-Heredia and McDiarmid, 2007, Zootaxa, 1572: 34.

English Names

Napo Cochran Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 46).

Anomalous Glassfrog (Guayasamin, Cisneros-Heredia, McDiarmid, Peña, and Hutter, 2020, Diversity, 12 (222): 143). 


Known only from four localities on the Amazonian slopes of the Ecuadorian Andes, Provinces of Napo, Pastaza, and Tungurahua, at elevations of 1668–1795 m elevation. 

Geographic Occurrence

Natural Resident: Ecuador

Endemic: Ecuador


In the Cochranella ocellata group according to Ruiz-Carranza and Lynch, 1991, Lozania, 57: 1-30. Cisneros-Heredia and McDiarmid, 2007, Zootaxa, 1572: 46, corrected the diagnosis. See photograph, map, description of geographic range and habitat, and conservation status (as Cochranella anomala) in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 212. See account by Rada, Ospina-Sarria, and Guayasamin, 2017, S. Am. J. Herpetol., 12: 137–141. Guayasamin, Cisneros-Heredia, McDiarmid, Peña, and Hutter, 2020, Diversity, 12 (222): 143–146, provided a detailed account, including natural history.  

External links:

Please note: these links will take you to external websites not affiliated with the American Museum of Natural History. We are not responsible for their content.