It is an animal of the small size: length of a body is up to 20 cm, a tail - 15 cm, height at a shoulde - 6 cm. Legs are short, fingers have well advanced claws; the animal is capable to get on high trees without effort though it hunts on the ground and in holes of rodents more often. A head is flat and extended forward, face part of scull is short, brain part is long and low. Teeth are peaked and cutting. Colouring of the body is straw-coloured with a dim longitudinal brown strip on a ridge, a tip of a tail is dark, belly is light-yellow.
The marsupium is well advanced, opening back. Cubs are born by female up to 6 ones, no more than 2 – 3 cubs survive and grow up to the age of independence: hungry cubs can eat weaker brothers. Cubs stay in marsupium about 2 weeks, further the female leaves them in a nest. At the age of 3 months cubs become completely independent and leave mother, in 5 months they grove to the size of an adult individual and become sexual matured. For one year it happens no more than 3 packs, at the year of plentiful catch – 4 ones. Live only 3 - 4 years.