Nymphargus posadae
Posada’s Glassfrog, Rana de Cristal de Posada
family: Centrolenidae
subfamily: Centroleninae

© 2011 Claudia Koch (1 of 7)
Conservation Status (definitions)
IUCN (Red List) Status Vulnerable (VU)
Other International Status None
National Status None
Regional Status None



View distribution map in BerkeleyMapper.

Member of the ocellata group with the following combinations of characters: 1) vomerine dentition absent, 2) bones light green in life, 3) anterior ½ of parietal peritoneum is white, 4) dorsal color in life is light green with a few cream granules, 5) snout subovoid when viewed dorsally and sloped anteroventrally when viewed laterally, 6) dorsal skin has wrinkles which are small and short, 7) lacks dermal folds in ulnar and tarsal regions, 8) humeral spine absent. Adults are medium sized; females reach 30.2-33.3mm SVL, males reach 32.7-34.1mm SVL. Head slightly larger than body, wider than long; width of head is 31.1-36.8% SVL. Distance from nostril to anterior portion of eye is 56.8-66.7% the diameter of the eye; diameter of eye is 35.5-41.1% length of head; tympanum is 25.6-34.2% diameter of th eye. Length of tibia is approximately 61.3-66.0% SVL. When hind limb is adpressed anteriorly, the ankle reaches the most anterior part of the snout.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Colombia, Ecuador, Peru


View distribution map in BerkeleyMapper.
Known from the eastern side of the Cordillera Central of Colombia in the departments of Caldas, county of Samaná, Cauca, county of Inzá and Huila, and San José de Isnos at elevations between 1900 and 2800m. The type locality is at the department of Cauca, county of Inzá, Km. 613 highway Popayán to Inzá, eastern slope of the Cordillera Central, 2° 34´ latitude N, 76° 4´ W of Greenwich, 2800 m, Colombia.

Life History, Abundance, Activity, and Special Behaviors
Adults found onvegetation and rocks bordering breaks in the forest; eggs were found in females (embryos were brown, yolk was cream colored)

Possible reasons for amphibian decline

General habitat alteration and loss


Ruiz-Carranza, P.M. and Lynch, J.D. (1995). ''Ranas Centrolenidae de Colombia V: Cuatro nuevas especies de Cochranella de la Cordillera Central.'' Lozania, (62), 1-24.

Written by Raul E. Diaz (lissamphibia AT, Assistant/student
First submitted 2002-12-22
Edited by Raul E. Diaz (2003-01-05)

Species Account Citation: AmphibiaWeb 2003 Nymphargus posadae: Posada’s Glassfrog <> University of California, Berkeley, CA, USA. Accessed Sep 19, 2020.

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Citation: AmphibiaWeb. 2020. <> University of California, Berkeley, CA, USA. Accessed 19 Sep 2020.

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