Crematorian Arthropod

The Crematorian Arthropod is a type of creature found in the underground tunnels of the planet Crematoria, it has a knobby spine-sporting exterior. The has no known name and Riddick did not recognize the species. These creatures are perfectly edible and are hunted by the Yellow Men who possibly sell them to the guards as the creatures seem to be part of normal prison rations, they are boild and have stringy pale white meat.