- any of numerous venomous elapid snakes, found chiefly in the New World tropics, as Micrurus fulvius(eastern coral snake ), of the southeastern U.S., often brilliantly marked with bands of red, yellow, and black.
- any of several other snakes, as of the genus Calliophis, of Asia, having red markings.
- any venomous elapid snake of the genus Micrurus and related genera, of tropical and subtropical America, marked with red, black, yellow, and white transverse bands
- any of various other brightly coloured elapid snakes of Africa and SE Asia
