Theloderma licin is the new frog species found only in Peninsular Malaysia and southern Thailand. It was recorded during Ulu Muda Forest Biodiversity Scientific Expidition in Kedah.
This frog has a slender body, head longer than the width of body and its skin is less warty than other species in the genus. This genus is found among the fern population (size of fern 15 cm width) on a steep cliff by the logging road.