(class Amphibia, order Anura)
A small family of mainly arboreal frogs which are probably closely related to the Leptodactylidae. The feet have pads and extra digital cartilaginous elements. The tibia, fibula, and calcaneum are all fused. The pectoral girdle is bow-shaped. There are 40 species, occurring in Mexico and S. America.
Subjects: Zoology and Animal Sciences.