The Boring Sponge (Cliona celata) is found worldwide but abundant in southern New England and the western Atlantic Ocean. It is commonly found around lagoons and coral reefs. It has a tendency of breaking down and creating holes in mollusks or shells or shelled creatures. As a result, they are featureless and seen as lumps at the bottom of a hole. It can be yellow or orange with a thick, encrusting form and small pores. Its ability to take host on shells makes them a great danger to shellfish farming. This sponge is a filter feeder, and like most sponges, reproduced both sexually and asexually.