they are rounded up front with a V shaped tail, I know this doesnt help much. They don't seem to bother any of my corals, but they accumulate on the glass and need to be cleaned off frequently. Thanks Len.
siphon them off, or just use a straw. Close one end of the straw with your finger to hold the air, submerge the straw so that the other end is close to the worms. When you let go of the finger, the air will rush out and such in the worms.
They are white and I've just been using my mag float to knock them off the glass. I have to do this almost daily, but if they are not harmfull, I don't mind. Thanks all.