The Mongolian Death Worm is a cryptid said to inhabit the Desert of Gobi. It is described as a very wide worm creature with a red body. The locals claim that this creature can spur an extremely acidic bile onto it's victims, which will instantly corrode the victim's body, and is also capable of discharging electricity. They also claim that the creature is very poisonous; the mere contact with it can cause instant death.
According to stories the Mongolian Death Worm can grow to the startling size of 5 feet or more, but this seems to be nearing the maximum length for these dangerous beasts.