Thorius macdougalli
Thorius macdougalli, commonly known as MacDougall's pigmy salamander, is a species of salamander in the family Plethodontidae. It is endemic to Oaxaca, Mexico, and is known from Cerro de Humo and Sierra de Juárez. Its natural habitat is pine-oak forest, but it also occurs in degraded habitats. It is threatened by habitat loss caused by clear-cutting and livestock grazing.