Friday, April 15, 2016

Purple-striped Jellyfish

The purple striped jellyfish is from the class Scyphozoa. It is from the phylum Cnidaria. It is in the kingdom Animalia. They are known as the "true jellyfish". Scyphozoa display a four type symmetry. They can consist as much as 98% of water. This jellyfish swims by alternating contracting and relaxing a ring of muscle fibers in the mesoglea around the rim of the dome.The purple-striped jellyfish (Chrysaora colorata) is from the order Semaeostomeae. It is from the family Pelagiidae and the genus Chrysoara. The sting of this jellyfish is extremely painful to humans. When the prey touches a marginal tentacle of the purple-striped jellyfish, stingers are immediately discharged to paralyze the prey and the marginal tentacle bends to the nearest oral arm. The oral arm is used to catch motionless prey and to move prey to the gastrovascular cavity. 


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