The Alameda Whipsnake (Masticophis lateralis), aka Striped Racer, is a colubrid snake of the California coast and foothills. It is 90–120 cm long, slender, with two yellowish stripes along its back, set against a dark brown or black back. It is fast-moving, diurnal, and an active forager. It is nonvenomous, but likely to strike if captured.