
"Clathrina clathrus" is a species of calcareous sponge belonging to the family Clathrinidae. This yellow sponge, up to 10 cm in diameter, usually appears cushion-shaped at a distance. Close-up the sponge can be seen to consist of a tangled mass of tubes. Like "C. coriacea", the spicules are exclusively three-pointed "triactines".
Similar species: Clathrinida
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Uploaded Mar 15, 2015. Captured Jun 10, 2010 09:46 in Unnamed Road, 90010 Ustica PA, Italy.
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