From the Super Mario Wiki
The title of this article is official, but it comes from a non-English source. If an official name from an English source is found, the article should be moved to its appropriate title.
Not to be confused with Unira
An Unera is a caterpillar or slug-like enemy found in the Tree Zone of Super Mario Land 2: 6 Golden Coins. Unera are one of the easiest enemies in the games to defeat. They crawl extremely slowly and have no real attack pattern. A simple jump attack or a fireball are enough to finish it off. A spiked version of Unera is known as a Grubby.
Names in other languages