Description

This species is the smallest of all brown frogs found in Korea, with males reaching up to 38 mm and females to 44 mm svl. Two dorsal stripes with black spots. This species differs from other brown frogs (e.g., Rana dybowskii) by having a continuous white line along the upper lips. Distinct dark speckling extends from behind the eardrums to the hedge of the snout. Dorsal and ventral skin are smooth with no tubercles. Toe webbing is well-developed. Males are smaller than females and have nuptial pads on the first finger during breeding season.