Fish and Marine Life Illustrations:
Azure Vase Sponge Illustrated:

Azure vase sponge, black sea urchin, and other marine plants and animals, watercolor pencils, watercolor and gouache
About the illustration:
Commissioned by: Smithsonian Institute

Further information about this illustration is detailed here: coral reef
About azure vase sponges (Callyspongia plicifera):
Azure vase sponges are also referred to as azure cup sponges. They are about six to eighteen inches tall. They grow either individually or in groups of two or three. They are found in coral reefs at depths of twenty to seventy-five feet.
Taxonomy:
Kingdom: Animalia
Phylum: Porifera
Class: Demospongiae
Family: Callyspongiidae
Genus: Callyspongia
Species: Callyspongia plicifera
More about azure vase sponges:
Wikipedia on Sponges
Invertebrates of Curacao
Saltcorner.com on Sponges
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