Thorius pulmonaris

Thorius pulmonaris (common names: lower cerro pigmy salamander, Cerro San Felipe salamander) is a species of salamander in the family Plethodontidae. It is endemic to Oaxaca, Mexico.

The species' natural habitats are deciduous forests, including those with some pines. It is a terrestrial species usually found beneath leaves and bark. It tolerates some habitat degradation.

Thorius pulmonaris is an endangered species due to its extent of occurrence being less than 5,000 km². The species is only definitely known to exist in the Cerro San Felipe region, and its population is in decline. Its habitat is threatened by habitat loss due to agriculture, logging, and human settlement. It might exist in the Benito Juárez National Park.