Killer Crab Alien

From Alien Species

An alien formed form a giant crab insect. this alien has 2 back legs and a 4 arms. the 2 lower arms can be used as the front legs while the top 2 can be used to grab prey.

The alien can fire what apears to be silver chestbursters from its 2 chest cavities.

It also posses a pronged tail to impale victems or possible host's