Craugastor matudai (common names: Matuda's robber frog, Matuda's stream frog) is a species of frog in the family Craugastoridae. It is found in the lower montane zone at elevations of 1500m–2000mm (4,900feet–7,000feetm) above sea level on the Pacific versant of Mexico and Guatemala, from Cerro Ovando in southwestern Chiapas (Mexico) to Fraternidad, a village in Esquipulas Palo Gordo, central Guatemala.[1] It is named after Eizi Matuda, Japanese–Mexican botanist[2] who hosted Hobart Muir Smith and his wife Rozella B. Smith, the collectors of the type series from Cerro Ovando.
Males measure 27mm28mm and females 37mm40mm in snout–vent length. The body is heavily rugose with tiny pearly-topped tubercles. The canthus rostralis is sharp with slightly raised edges. The diameter of the tympanum relative to the eye is much larger in males (>4/5) than in females (little more than 1/2). Males lack vocal sac.
Its natural habitat is pine-oak forest where it lives terrestrially. This rare species is potentially threatened by habitat loss. Mexican law protects it under the "Special Protection" category (Pr).