The Venus' flower basket is a species of glass sponge found in the deep waters of the Pacific Ocean, usually at depths below 500 m. Like other glass sponges, they build their skeletons out of silica,

Demosponges or common sponges are sponges of the class Demospongiae, the most diverse group in the phylum Porifera which include greater than 90% of all extant sponges with nearly 8,800 species worldw