Pristimantis ridens, also known as the pygmy rain frog and the Rio San Juan robber frog, is a species of frog in the family Strabomantidae. It is found in western Colombia (Pacific slopes of the Cordillera Occidental), and then through Panama and Costa Rica to Nicaragua and eastern Honduras. Description Pristimantis ridens are small frogs, with males growing to and females to in snout–vent length. The dorsal skin is smooth and pale brown or yellow in colour, with some pink undertones. There is often a slightly darker W-shaped patch just behind the head. Individuals may have a single or two, parallel dorsolateral stripes. The thighs are barred. The ventral colouration is yellow with some dark specks. Pristimantis ridens can be very similar to Pristimantis cruentus. Habitat and conservation The species' natural habitats are humid lowland and montane forests to about above sea level. It also occurs disturbed habitats such as degraded secondary vegetation, plantations, rural gardens, and urban areas. References ridens Amphibians of the Andes Amphibians of Colombia Amphibians of Costa Rica Amphibians of Honduras Amphibians of Nicaragua Amphibians of Panama Amphibians described in 1866 Taxonomy articles created by Polbot