Cractid

The Cractids were a crustacean species which originated on the planet Helheim.
== Biology ==
The Cractids were crustaceans with an exoskeleton, two claws, six legs, and mandibles. They were the only organism in the entire galaxy which had an immunity to Richter's Syndrome.
A swarm of Cractids could consume a human being — flesh and bone — in under a minute.
The only way to stop them was a sonic burst at the resonant frequency of the Cractids' outer shells it knocked them out for a few minutes.
== History ==
As the Cractids were the only species with an immunity to Richter's Syndrome, Genetech set up a research facility on Helheim and experimented on them to find a cure. (AUDIO: Cobwebs)
A Cractid was exhibited in the Space Museum when the Vashta Nerada invaded. (WC: Hall of Monsters)
Category:Crustaceans
Category:Predators
Category:Six-legged species