Odontophrynus carvalhoi (common nane: Carvalho's escuerzo) is a species of frog in the family Odontophrynidae. It is endemic to eastern Brazil and found east of the Espinhaço Mountains between northern Minas Gerais and Paraíba at altitudes higher than 500m (1,600feet) above sea level.
Males measure 51.6mm69.4mm and females 53.3mm76.5mm in snout–vent length. The snout is vertical in profile. The parotoid glands are large and elongated to elliptical in shape. Dorsal ground colour is greyish green. There is a blackish to greyish green Y-shaped mark that runs from each upper eyelid to near thesacral region.
The male advertisement call is composed of a single, multi-pulsed note.
Odontophrynus carvalhoiis found adjacent to deciduous or semi-deciduous forest areas in Caatinga, Atlantic Forest, and Cerrado biomes. It has been characterized as a dry forest border inhabitant of northeastern Brazil. It is a terrestrial frog usually found near water. It is common during the breeding time but otherwise difficult to find. Breeding is explosive, and the tadpoles develop in small intermittent streams and temporary ponds. It could be impacted by habitat loss caused by livestock grazing and fire.