Sluggy

From the Super Mario Wiki

Sluggy
Affiliation(s)	Koopa Troop
First Appearance	Super Mario World 2: Yoshi's Island
Notable Members
Sluggy the Unshaven

Sluggies are hairy slug-like enemies found in Super Mario World 2: Yoshi's Island. They come in three colors: green, red, and blue. Sluggies can fall on Yoshi from the ceilings. The only place they appear in is Sluggy the Unshaven's fort.

[edit] Trivia

Sluggy the Unshaven is the only notable Sluggy in the Mario series. Sluggys are small and are fairly simple creatures