Gastrotheca riobambae (Fowler, 1913)

Common Names and Taxonomy

Gastrotheca riobambae, commonly called the Andean marsupial tree frog, Riobamba marsupial frog, or Riobamba pouched frog, is a species of frog in the family Hemiphractidae.

Geographic Range

This species is endemic to Ecuador, where it is restricted to the Andes and inter-Andean valleys, ranging from Imbabura in the south to Chimborazo.

Elevation Range

It inhabits elevations between 2,200 and 3,500 meters (7,200 to 11,500 feet) above sea level.

Habitat Types

Its habitat varies widely, including montane forests, dry rocky hillsides, areas with agave plants, and corn fields.

Conservation Status

Once a common species, it is currently threatened by severe habitat loss.

Adult Size

The snout–vent length of adult Gastrotheca riobambae is approximately 48 mm (1.9 inches).

Physical Features

It has a broad, depressed body, with smooth skin on the upper side and granulated skin on the underside.

Reproductive Mechanism

For members of the genus Gastrotheca, males transfer eggs from the female's cloaca to a dorsal pouch on the female, where the eggs develop until they reach the tadpole stage.

Pouch Development Period

The eggs remain in the female's pouch for approximately five to six weeks.

Post-Pouch Development

After reaching the tadpole stage, the young continue their development in water and complete metamorphosis within a few weeks.

Human Interaction

Gastrotheca riobambae is sometimes kept as a pet.