Xestospongia bergquistia
Xestospongia bergquistia is a species of barrel sponge in the family Petrosiidae first described by Jane Fromont in 1991.[1][2] The species epithet, bergquistia, honours the New Zealand sponge specialist, Patricia Bergquist.[2] HabitatX. bergquistia occurs at depths of 5–15 m in full light on substrates of rock or dead coral.[2] DescriptionX. bergquistia is an erect, red-brown, cup-shaped sponge, with vertical ridges on the outer surface.[2] The sponge varies in size from 15 cm to 1.5 m high, with the cup at its apex forming a central hollow up to one third its height. It is a firm but springy sponge.[2] References
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