Death Worm!

A giant poisonous worm that lives beneath the sands of the Gobi and can kill with the power of electricity can surely only be the stuff of legend. Or can it?

The first time you hear about the Mongolian Death Worm you assume it has to be a joke; it sounds too much like the monster from a B-movie or an especially dire comic book to be true. A five-foot (1.5m) long worm dwelling in the vast and inhospitable expanses of the Gobi Desert, the creature is known to Mongolia’s nomadic tribesmen as the allghoi khorkhoi (sometimes given as allerghoi horhai or olgoj chorchoj) or ‘intestine worm’ for its resemblance to a sort of living cow’s intestine. Apparently red in colour, sometimes described as having darker spots or blotches, and sometimes said to bear spiked projections at both ends, the khorkhoi is reputedly just as dangerous as its alarming appearance would suggest, squirting a lethal corrosive venom at its prey and capable of killing by discharging a deadly electric shock, even at a distance of some feet.

http://www.forteantimes.com/articles/182_deathworm1.shtml