The adult male frog is 2.7 to 3.3 cm long and the adult female is 3.3 to 3.7 cm long. It is gray or brown in color with a white belly. Its eyes can be silver or gold in color. It has a round head and a short nose. It has vomerine teeth on its upper jaw. It has more webbing on its hind feet than on its front feet, and it has discs on its front toes. Male frogs grow spikes out of their skin when it is the time of year to attract females.