(Thorius boreas)
Thorius boreas (common name: boreal thorius) is a species of salamander in the family Plethodontidae.It is endemic to Oaxaca,Mexico,and only known from the Sierra Juárez.Its natural habitats are pine-oak and fir forests,often at forest edges.It is threatened by habitat loss (logging),although it does explain the dramatic decline that this species has seen.