Lanmola

A Lanmola (ラネモーラ, Ranemōra) is a powerful, centipede-like foe found in several Zelda titles. While mostly common enemies, three giant Lanmolas once served as the boss of the Desert Palace.

Legend of Zelda
Lanmolas are only found in the Skull Labyrinth and are powerful foes. They come in red and blue varieties and, like the Moldorms in the game, grow shorter by one segment with each blow.

A Link to the Past
The three Lanmolas (ラネモーラ, Ranemōra) guarded the Pendant of Power in the second dungeon of A Link to the Past. They dig out of the floor somewhere in the room, then fly a while and dive back into the sand. When they burrow out from the sand, they make some rubble to fly at Link. After only one is remaining, it will be much faster and it creates more rubble. In this time they can be hit on the head or tail with Ice Rod, Arrows or Sword. However, it's harder to hit them with Arrows and Ice Rod. After they are defeated, Link gets the Pendant of Power and a Heart Container.

Later in Ganon's Tower they guard the way up.

One did appear Link's Awakening as a mini-boss. It has guarded the Angler Key.

There are also smaller Lanmolas, which act as regular enemies.

Note
This boss shares similarities with to Twinmold from Majora's Mask and Molgera from The Wind Waker.

Link's Awakening
A Lanmola is fought as a mini-boss in the Yarna Desert in order to obtain the Angler Key. The Lanmola attacks in the same fashion as those in A Link to the Past, but this time if fights in a patch of quicksand.