The puddle frog, Engystomops pustulosus (Cope, 1864) ranges from eastern and southern Mexico (Veracruz and Oaxaca) southward through Central America to Colombia and Venezuela. The photographs on this page were all taken in Trinidad. This species was long considered part of the genus Physalaemus.

The puddle frog, Engystomops pustulosus (Cope, 1864). A calling male in shallow water.

The puddle frog, Engystomops pustulosus (Cope, 1864). A calling male in shallow water.

The puddle frog, Engystomops pustulosus (Cope, 1864). A pair in amplexus. Amplexing pairs will on occasion leave the water and wander overland, like these individuals. They are also easy prey for the large terrestrial crabs that share their habitat.

The puddle frog, Engystomops pustulosus (Cope, 1864). A foam nest is made from proteins released during amplexus. The foam nest is made by the kicking legs of the frogs and the nest houses and protects the eggs from predation and desiccation.