Porifera
Black Ball SpongeThe black Ball Sponge also known as Ircinia strobilina. It is seen as a Ball- or cake-shaped, up to 20 cm high and 23 cm in diameter. Large specimens may show a shallow depression at their upper side, but many specimens are rounded or laterally expanded masses. It is known as Coarsely conulose.
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Convoluted Barrel spongeThe convoluted Barrel sponge also known as the Aplysina lacunosa. It is only a single or clustered, thick-walled tapering tubes of up to 35 cm high, 10 cm in diameter, with an apical vent of up to 3.5 cm with an iris type diaphragm.
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Rope pore Rope Sponge The Rope pore Rope also known as Aplysina cauliformis with Long, branching and rope-like, up to 60 cm. Generally hanging downward with the tip of the branches curling upward. Excurrent openings form long rows and are 1-4 mm in diameter.
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Porifera Summary
Sponges have no real circulatory system.Sponges have flagellated cells over the surface of their bodies, these are cells that have tails that wiggle. The collective effort of all these cells creates a water current through the many porous openings in the sponges body. It's a water based circulatory system. |