From the Super Mario Wiki
Retrieved from "https://www.mariowiki.com/index.php?title=Glad_Fang&oldid=2173316"
Glad Fang is a glad variant enemy on Vibe Island in the game Super Princess Peach. Unlike the normal Fang, which will fly right at Princess Peach, Glad Fang will usually fly around randomly, similar to how a Glad Blooper swims around aimlessly.
According to the game's Glossary, it "dances happily and attacks!"