Cloud Sponge (Aphrocallistes vastus)
…is a species of glass sponge found throughout the northern Pacific Ocean. Cloud sponges are one of the few species of glass sponges that are able to form slow growing reefs. They provide a substrate that a community of invertebrates and other animals can thrive on. Like all glass sponges the cloud sponge’s body wall is made of silicaceous material which makes it unattractive as a meal to most predators, however a few species of sea stars are know to prey on it.