Eleutherodactylus is a genus of frogs in the Eleutherodactylidae family. Many of the 185 species of the genus are commonly known as `rain frogs` or `robber frogs`, due to their sharp, high-pitched, insect-like calls. The best-known species is the common coquí (E. coqui), which is both a national symbol of Puerto Rico and a notorious invasive ... Found on http://en.wikipedia.org/wiki/Eleutherodactylus