I'm not sure if we'll get there, but this is the Larva - another "invader" from Planet Apocalypse. It represents the hideous fate of those overtaken Nd dominated by the hellish forces of that universe. As such, it was, at one time, human.
Well, this Larva has escaped into the pageantry of Cthulhu Wars! Should we reach his stretch goal, he'll be included free in your stretch goal box, and we'll include his rules for use. (He is kind of a gate parasite.)