Philodryas chamissonis, commonly known as the Chilean green racer and the Chilean long-tailed snake, is a species of moderately venomous opisthoglyphous (rear-fanged) snake in the family Colubridae.

[4] The specific name, chamissonis, is in honor of German botanist and poet Adelbert von Chamisso.

It is a medium-sized snake, which usually reaches 1.4 m (4.6 ft) in total length (including tail).

[6] P. chamissonis lives in a large variety of habitats, at altitudes from sea level to 2,300 m (7,500 ft).

[1] The diet of P. chamissonis is mainly composed of little rodents, birds, amphibians, and other smaller reptiles.