It menaced Scrooge, Donald and and his (sororal) nebhews in the Barks-story Status seeker. It was attracted by peppermint candy that fell from their ship.
When Huey and the rest threw dozens or hundreds of candies to the ocean, they managed to escape the clutches of death.
It defeated the Beagle boys in the same adventure.
In Duck tales the comic, it helped the ducks again. It also got its name in the series.