The ridge tail salamander or ridge-tailed salamander (Spanish: salamandra de cola estriada; Pseudoeurycea obesa) is a species of salamander in the family Plethodontidae. It is endemic to Oaxaca, Mexico, and only known from the area of its type locality. Its natural habitat is cloud forest. It is only known from a total of five individuals that were found under small rocks and schist slabs in roadside talus. This might indicate tolerance to habitat modification, but habitat loss (deforestation) occurring in the area is a threat to this species.