Muckle

Muckles are large jellyfish-like creatures used as guards by Valentina in Super Mario RPG: Legend of the Seven Stars. Muckles are very large (bigger than Mario) and capable of flight (or, at least, the ability to hover). These jellyfish can use powerful ice attacks such as "Blizzard". Muckles are capable of countering magic attacks with their own magic.

Muckles are probably related to Leukos. Both species resemble Jelectros.