Micruroides

Adults of Micruroides euryxanthus are in total length (tail included). the black extending to the posterior border of the parietals. The smooth dorsal scales are arranged in 15 rows at midbody. The ventrals number 214–241. The anal plate is divided. The subcaudals number 21–34, and are divided (paired). Micruroides euryxanthus resembles Micrurus fulvius. However, the white or yellow rings are broader than in M. fulvius, and there are fewer black rings on the tail, usually only 2. ==Venom==

The venom of Micruroides euryxanthus is neurotoxic and extremely potent, but no fatalities have been reported. ==Habitat==

Micruroides euryxanthus is found in arid and semiarid regions in numerous habitats, both on plains and on lower mountain slopes, from sea level to . In Arizona it is abundant in rocky upland desert. ==Behavior==

The Sonoran coral snake usually stays underground and comes out at night, but can also appear during and after rains. ==Defense==

When startled, frightened, or threatened, Micruroides euryxanthus will hide its head under its body and raise and tightly curl its tail. While in this posture, it will "fart": snakes do not have an anal cavity in the sense that humans and most mammals do, but rather a tract that allows for both disposal of waste and for laying of eggs in females. Instead, it will forcibly and noisily emit gas from its cloaca, a behavior known as "cloacal popping", and predictably this phenomenon has a very unpleasant smell. ==Diet==

The Arizona coral snake preys upon small snakes, predominantly Rena (snake), but also Sonora, and Tantilla. It will also eat small lizards such as skinks. ==Reproduction==

Like all other species of New World coral snakes (genera Leptomicrurus and Micrurus), Micruroides euryxanthus is oviparous. Adult females may lay up to 3 eggs, and each hatchlings is in total length. ==Geographic distribution==

Micruroides euryxanthus is found from central Arizona and southwestern New Mexico to Mazatlán in southern Sinaloa. Isolated populations are also found in the Chocolate Mountains, La Paz County, western Arizona and on Tiburón Island in the Gulf of California. ==Subspecies==

Three subspecies are recognized, including the nominotypical subspecies. • Micruroides euryxanthus australis • Micruroides euryxanthus euryxanthus • Micruroides euryxanthus neglectus Nota bene: A trinomial authority in parentheses indicates that the subspecies was originally described in a different genus than the one within which it is currently classified. ==References==