Burn Bit

From the Super Mario Wiki

Burn Bits are enemies in Super Mario Galaxy, and are the fiery counterparts of Brrr Bits. To defeat one, Mario must use a Star Spin to put out the flame surrounding it, and it will fall to the ground stunned just like any other enemy. If the player is not quick to hit the Burn Bit while it is vulnerable, it will start to hop around, attempting to jump in the lava and regenerate its flame.

With their flame, Burn Bits resemble Podoboos with white eyes.

Fire Creatures
Angry Sun | Blargg | Bomb | Burn Bit | Crusher Blargg | Czar Dragon | Ember | Fiery Bubble | Fire Chomp | Fire Elemental Ghost | Fire Snake | Fireball | Fryguy | Fryguys | Gargantua Blargg | Helio | Hot Foot | Hot Lips | Hothead | Kleever | Lava Bubble | Lava Bud | Lava Drop | Lava Ghost | Lava Piranha | Li'l Sparky | Mini Fryguy | Petit Piranha | Phantom Ember | Podoboo | Pyro Guy | Pyrosphere | Sparky | Sun | Torcher | Trouble Bug
Fire-Related Creatures
Baby Bowser | Birdo | Bowser | Bowser Jr. | Calm Volcano Plant | Dhalsim | Dino-Torch | Dragon Wario | Fire Bro. | Fire God (Mario & Luigi: Superstar Saga) | Fire God (The Super Mario Bros. Super Show!) | Fire Luigi | Fire Mario | Fire Wario | Flaming Wario | Flare | Gao | Iggy Koopa | Jumping Piranha Plant | Kerozene | King Totomesu | Lava Lotus | Ludwig von Koopa | Sumo Bro. | Tryclyde | Venus Fire Trap | Vivian | Volcannon | Volcano Lotus | Zeus Guy (Bandit) | Zeus Guy (Snifit)