Tigerworm

A tigerworm was a type of sea slug found in Kara-Tur. They were carnivorous and had black and orange stripes like the tiger, hence their name.

By 1357 DR, tigerworms had infested E'Tyon Bay north of Singye in Koryo. They'd sunk four fishing boats and a merchant ship. Singye authorities offered a reward to any who could eliminate the menace.