This list of Anuran families shows all extant families of Anura. Anura is an order of animals in the class Amphibia that includes frogs and toads. There are around 5,280 species currently described in the order. The living Anurans are typically divided into three suborders: Archaeobatrachia, Mesobatrachia and Neobatrachia. This classification is based on such morphological features as the number of vertebrae, the structure of the pectoral girdle, and the morphology of tadpoles.
Glass frog (or Glassfrogs) is the common/popular name for the frogs of the amphibian family Centrolenidae. While the general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is transparent. The internal viscera, including the heart, liver, and gastrointestinal tract are visible through this translucent skin, hence the common name.