Alexander Semenov spends a lot of his time with the creepier things in life, such as this Nereis virens here.
Commonly known as a clam worm (who knew) these critters are found lurking about intertidal zones hoovering up critters great and small.
You can read all about them here.
Alexanders website deserves a special look and keep your eye out for a stunning face to face encounter with Caprella septentrionalis - the Skeleton shrimp.
This site features fantastic photography, hands down A-list stuff.