[quote=Pathfinder]
He was sent to Catachen and excelled, he even cleared a nest of Catachen Devils and in the process gained a name for himself as a force to be reckoned with.[/quote]

[quote=Lexicanium]
As Catachan Devils grow, they develop more and more mid-sections and pairs of legs. A fully grown adult can have up to thirty sets of legs, and can reach up to thirty meters in length

(...)

Catachan Devils are territorial, yet quite sociable creatures, tending to form into nesting groups. These groups often contain several large Devils, as well as a few dozen or so of 'Devilspawn' (younger Devils). The entire nest will come together to defend their territory from any intruders, be it rival Devils, colonists, or other predators, and they have even been known to attack Imperial Guard Tank Companies.
[/quote]

[url=http://wh40k.lexicanum.com/wiki/Catachan_Devil#.U47zjy8eBO1]Sauce[/url]