Callyspongia vaginalis, known as the branching vase sponge is a demosponge. This species is frequently colonized by Parazoanthus parasiticus, a colonial anemone, and Ophiothrix suensonii, a brittle star. It feeds on plankton and detritus. The color of C. vaginalis is variable, ranging from lavender to brownish-gray to greenish-gray and sometimes light tan. It lives in the area of the Caribbean, Florida, Bermuda, and the Bahamas. It grows at a temperature of 20°-24°C.