Giant Slug
Encyclopedia Entry:
A race of mollusk-type monsters that prefer dark and damp places. Their ancestors has shells, but as the species evolved the shells disappeared.
Giant slugs are extremely leisurely by nature. Because they are so slow, they are easy to run away from. However, a giant slug moves silently, and she may not be noticed until it’s too late. Her body is covered in an extremely sticky slime, which will trap any human man who touches her arms or the lower half of her body. Once she has plastered her victim to the ground, she will climb on top of him and begin to rape him. She will not release him until she has exhausted herself; because of the excruciatingly slow pace at which giant slugs have sex, this may take a very long time.
Though it remains unconfirmed, it would seem that the giant slugs were hermaphroditic a long time ago. Instincts left over from those days will sometimes drive members of the race to try and rape a human woman.
Giant slugs are vulnerable to salt. It’s said that covering their bodies with it will cause them to shrivel and revert to a childlike form.