Morth

Morths are immature Mothula found in The Wind Waker, often in swarms. They are parasites that hamper Link's movement. Link can easily free himself by using the Spin Attack or just by rolling. They are easily dispatched by the Boomerang if they aren't latched on to Link.

In Twilight Princess, there are two creatures that act like Morths. The first one is a Poison Mite, and the other a Ghoul Rat, both of which appear in Arbiter's Grounds. They are both very dangerous in this temple, as they impede your movement, which is especially dangerous in quicksand.

Trivia
Morths greatly resemble Gordos from the Kirby series.