Allghoi khorkhoi

Allghoi khorkhoi (from the native word for the animal), commonly called the Mongolian Death Worm, is a species of wormlike reptilian native to the Mongolian Gobi Desert.

Because it does not do well in captivity, a live specimen of khorkhoi is highly valuable and sought-after.

Physical appearance and biology
A fat, wormlike creature capable of growing to up to five feet, khorkhoi has reddish-brown skin, and, like common garden worms, no distinction between its anterior and posterior ends. It is hermaphroditic; individuals are both male and female.

Khorkhoi has moutparts rather like a lamprey or a leech; a circular hole with no jaw, just rows and rows of very sharp teeth.

Behaviour
Khorkhoi, like certain arthropods, uses venom to liquify the internal organs of its prey. This venom renders the prey item unconscious, and, if the prey survives, it will experience constant hallucinations for some time after, even if an antivenin is administered. The other side effects of said venom include: Burning during urination, vulnerability to gangrene/infection, loss of hair, hemorrhagic bleeding, lungs filling with bodily fluids, and the swelling of the male testes.

List of appearances

 * Curse of the Wendigo (first appearance)
 * The Isle of Blood (mentioned only)
 * The Final Descent (mentioned only)