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In this article we will discuss about the structure of Sycon with the help of a diagram.
1. It is a marine, colonial and hermaphrodite sponge which is found attached to rocks near sea shore in shallow waters.
2. Each sponge is a vase-like cylinder perforated with numerous ostia all over and a large osculum at the apex.
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3. Osculum is surrounded with a fringe of monaxon spicules.
4. Canal system is of syconoid type.
5. Radial canals are lined with chonanocytes.
6. Skeleton is made up of monaxon, triaxon and tetraxon calcarious spicules.
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7. Reproduces asexually and sexually.
