White worm

[mellophanic]

I was under my tank a year ago and noticed this tunnel and the worm in it. It is 3-4 inches long, and I have never seen it anywhere except when it is in the tunnel.

I am wondering if anyone might know what type of worm it is? I'm guessing some type of peanut worm?

 

[Crabs McJones]

Peanut would be my guess as well