Do bristle worms eat clams?

I just picked up my clam off the sand bed and noticed a few little worms under him. My first assumption is they are just kinda hiding out because the clam is on the sand. I gave the clam a quick once over and it seemed no worse for wear. Bristles don't have a tendency to eat clams do they?

 

you hear so many things about bristle worm good and bad i have 6 maximas in my tank and many bristle worms and never saw any damage to anything i think they are a good part of a janitor crew ,some think other wise look in the tank at night and you probably see many more