The average body length of the western hog-nosed snake ranges from 45 to 60 cm, with the longest recorded body length being close to 90 cm. Slightly stubby, with a pointed and inward muzzle. There are brown stripes juxtaposed along the center of the back. There are similar markings on the side of the body, and there are continuous large black markings on the abdomen.

The western hog-nosed snake inhabits the sandy prairie and is active in the early morning or evening. Mainly eat rodents and lizards, frogs and toads can also be. Mating in March-May. From June to August, 4-23 eggs can be laid, which can hatch after 50-60 days. The western hog-nosed snake's defensive behavior is feigned death.