Coral Snake, a small poisonous snake of the Western Hemisphere. There are about 50 species. A coral snake has a cylindrical, neckless body marked with alternating broad bands of black and red separated by narrow bands of yellow. Adults are from two to five feet (0.6 to 1.5 m) long. Most species burrow in the ground. The snake will bite only if molested. The harlequin coral snake is found in the southeastern United States; the Sonoran coral snake in Mexico, New Mexico, and Arizona; and the South American coral snake in tropical South America.

The harlequin coral snake is Micrurus fulvius; Sonoran, Micruroides euryxanthus; South American, Micrurus spixi. They belong to the family Elapidae.

South American coral snakesSouth American coral snakes are poisonous with red, black, and yellow-white bands.