The nude marmot is about 10 centimeters long, pink or light yellow with few hairs on its body, wrinkled skin, and four thin and short legs. The eyes, like needle noses, were almost completely regressed; the ears had become little buds that were barely discernible. At the front end of the naked marmot's mouth are two pairs of huge incisors.

The two pairs of incisors of nude hamsters are completely exposed outside the mouth. They live in the tunnels they have dug all day long. In order not to suffocate, they have to reduce the body's metabolic rate.