Corpsers

No one has ever seen these creatures, apart from the tentacle that suddenly shoots out of the ground to pull the victim under the earth, where it is killed and eaten. The Corpser relies on stealth to sneak to its victim. But once detected, the normal adventurer should have little problem with destroying this abomination.

They can be found in caves and dungeons with soft soil.

Lore
''This creature is a type of ghoul that ensnares its victims with its tentacles in order to drag them off to its lair and presumably kill them in a manner that has never been discovered. Its only known weakness is fire.''

- from "Fellowship", Ultima VII