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Notes: Thick-walled barrels-jugs, single or in groups. Greenish to purplish in the outside, bright yellow inside, turning purple in air. Skeleton is a pithed spongin fiber network forming the walls of a honeycomb, which show on the surface. A sister species is V. gigantea (Hyatt, 1875) (also pictured in this catalogue), whose shape is that of a thin-walled inverted cone.
Author Reference: Alcolado, 1984
Link: World Porifera Database