Cerebrocrustacean

Cerebrocrustacean (a play on "cerebrum" and "crustacean") is a species from the stormy planet Encephalonus IV. The Cerebrocrustacean is an amphibious alien creature that closely resembles a giant crab. They have red/brown exoskeletons with small bumps around the face and on top of their head. Their head is very large with arms sprouting from each side. Cerebrocrustaceans have claws, six spider-like legs and a stubby body. Their face is composed of only eyes and a mouth (which doesn't move while talking).

Cerebrosrustaceans are able to open the exoskeleton plates on their head to reveal an enormous brain. This lets them, by thinking hard enough, produce electrical storms and forcefields from their brain. They are also extremely intelligent, making them speak in a higher diction and a British accent.