Number of Species: 120
Genera: 12 – Centrolene, Chimerella, Cochranella, Espadarana, Ikakogi, Nymphargus, Rulyrana, Sachatamia, Teratohyla, Vitreorana, Celsiella, and Hyalinobatrachium
The family Centrolenidae is part of the sub-order Neobatrachia, the advanced frogs. Centrolenidae gets the name Glass frog family because the abdomens of the frogs are translucent. They are found in central America down to northern Argentina with a few islands in the Caribbean.
These frogs can be confused with frogs in the family Hylidae, the Tree frog family. The difference is that the Glass frog’s eyes are forward facing, while Tree frogs have eyes that face the side. Glass frogs are small, with the biggest ones growing to only 3 inches long. They spend most of their lives in the trees. Usually, the eggs of Glass frogs are laid on leaves hanging over streams. When the tadpoles grow, the leaf drops and the tadpoles drop into a stream. Some species of Glass frogs protect the eggs on the leaves from maggots and flies.