Gastrotheca pacchamama belongs to the Gastrotheca marsupiata complex, whose northern distribution seems to be impeded by the Huancabamba Depression (ranges and basins of low relief in the Andes of northern Peru and extreme southern Ecuador). Dorsum of body is tan, gray, red, or green, without markings (3%) or with darker markings of same color consisting of interorbital bar (78%), paravertebral longitudinal marks (43%), broad mid-dorsal mark (20%), flecks (13%), or spots (8%), transverse bars on limbs. Dark canthal stripe and pale labial stripe present. Tympanum dark brown, reg, gray, or green in life. Males reach a SVL of 37.5 mm, and 38.0 mm in females. Head width slightly greater than head length. Snout is acutely rounded when viewed dorsally and rounded in lateral view. Eye slightly smaller than distance from eye to nostril. Tibia length is 46% of SVL. Skin on dorsum is pustular. First digit is slightly smaller than second. Development is direct. Relative length of fingers is 1<2<4<3; relative length of toes is 1<2<3=5<4. Webbing is absent between first three toes, other two toes webbed basally. The pouch opens in a V-shaped manner, with anterior border just posterior to sacrum (Duellman 1987).
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Peru
Known from an elevation of 3710 m above the treeline at the crest of the Cordillera Oriental in Departamento de Ayacucho, Peru.
Life History, Abundance, Activity, and Special Behaviors
Frogs have been found under rocks in wet grassland. Males called during the day from moss-covered talus (Feb. 1975). Temperature was 13.0-17.5 celcius.
Duellman, W. E. (1987). ''Two new species of marsupial frogs (Anura: Hylidae) from Peru.'' Copeia , 1987(4), 903-909.
Written by Raul E. Diaz (lissamphibia AT gmail.com), AWeb guy
First submitted 2004-06-04
Edited by Tate Tunstall (2008-02-03)
Species Account Citation: AmphibiaWeb 2008 Gastrotheca pacchamama <http://amphibiaweb.org/species/1393> University of California, Berkeley, CA, USA. Accessed Jan 20, 2019.
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Citation: AmphibiaWeb. 2019. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 20 Jan 2019.
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