Although the deep-dwelling purple worm is the most common of its ilk, variant immense worms of differing colors dwell in other remote wildernesses. A sleek, mottled blue-and-green variant of the giant worm dwells in deep underground lakes or tropical seas (this variant loses its burrow speed but increases its swim speed to 40 feet). A deep crimson variant of even greater size dwells in remote badlands and rocky deserts (this variant is never less than Colossal in size). Other species doubtless remain to be discovered in the far corners of the world.