Lower Cerro Minute Salamander

Thorius pulmonaris, commonly known as the lower cerro pigmy salamander or Cerro San Felipe salamander, is a species of salamander in the family Plethodontidae. It is endemic to Oaxaca, Mexico.

It is known only from the region of Cerro San Felipe, on the western slope of the Sierra Madre de Oaxaca in central Oaxaca, above the Valley of Oaxaca, from 2,100 to 2,500 meters elevation. 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.