Arenicola Marina
The Arenicola Marina is more commonly known as the Lugworm and is commonly found among the coast of Europe and North America, it can even be found while digging up the sand. This organism can reach up to nine inches in length and reach one centimeter in diameter. It body also can come in either a segmented or ringed form. This organism spends most of its life burrowed underground, and also lives in U-shaped burrow inside of the sand.