The age of Huangshan squirrel can be judged by the freshness of its teeth. If the teeth have shown signs of yellowing, the mouse is at least half a year old.

Huangshan squirrel is a red-bellied squirrel, which mainly lives in the Woods. It has no tufts of hair on its ears, bright body color and a big tail. His eyes are bright, his body is vigorous, his limbs are light, and he is very agile and alert. The top of the skull is enlarged and the snout is narrow and short; The zygomatic arch is straight. The orbital space is wider than the nasal bone; Supraorbital process base and orbital margin uplift; The auditory vesicle is prominent, but not big. There are three protrusions in the center of occipital bone. The herringbone ridge is obvious. The front teeth are flat and narrow. The first premolar is a small cylinder, which is obviously smaller than other teeth. Molar teeth are low crown teeth, with mound-like protrusions on the chewing surface, but no stele.