Asteroidea anti-personnel mine

The Asteroidea anti-personnel mine is an explosive device used primarily by the UNSC. Asteroidea mines have eight arms and pressure triggers. They can be thrown through the air with ease and explode producing shrapnel similar to the Fragmentation Grenade. Asteroidea mines were used by Spartan-II's during the Raid on Camp New Hope, and were used to kill General Howard Graves and a team of rebel commandos.

Trivia
"Asteroidea" is the class to which sea stars belong, a reference to the mine's starfish-like shape.