Spikethumb frog

Spikethumb frogs are a genus (Plectrohyla) of frogs in the Hylidae family found in Central America from southern Mexico through Guatemala and northern El Salvador to central and northern Honduras. A major revision of the Hylidae family moved an additional 21 species to this genus from the Hyla genus. They are called spikethumb because of the spike on their thumbs, which is called a prepollex. The genus name comes from the Greek word plēktron ("spur") and hyla (the genus in which it was formerly placed).