| Scientific Name | Plestiodon callicephalus |
| Category | D |
| Taxon | Reptiles |
| Climate Change Vulnerability Score | Less Vulnerable |
The Mountain Skink (Plestiodon callicephalus) is a small (13-18 cm [5-7 in] total length), secretive, glossy lizard that is found from Jalisco, Mexico north through western Mexico and just over the US-Mexico border into southeastern Arizona and southwestern New Mexico. In the US, it can be found in montane pine (Pinus spp.) and oak (Quercus spp.) forests, typically in canyons and on hillsides. The Mountain Skink will experience a high degree of climate exposure and has a high adaptive capacity. Overall, it has a Climate Change Vulnerability Index ranking of Less Vulnerable under both Representative Concentration Pathway (RCP) 4.5 and RCP 8.5 Scenarios. The Mottled Rock Rattlesnake’s climate change vulnerability is impacted by factors related to distribution and abiotic niche, which influence its ability to shift in space and respond to climate change impacts.



