Ayanganna Stefania

Stefania ayangannae is endemic to Guyana, where it is found only in the Pacaraima Mountains, on the tepuís of Mount Ayanganna and Mount Wokomung. It is an inhabitant of high-elevation forests. It has been recorded from elevations of 1,234–1,698 m (4,049–5,571 ft). It has been observed on low vegetation and in bromeliads, which scientists may believe may protect the frogs from strong wind. Like other Stefania frogs, females of Stefania ayangannae carry eggs on their back using an adhesive mucus. These eggs hatch via direct development into froglets, which continue to live on the female's back for a brief time period before leaving. Clutches in Stefania coxi have four to nine eggs. These eggs are released by the female while raising her rump slightly. The male, holding on to the forelimbs in axillary amplexus, arranges these eggs on the female's back using his legs. Once the eggs are properly positioned, the female releases a fluid from a protuberance of skin on her cloaca; this fluid may form the adhesive that fixes the eggs in place.