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Siphonophora

A Dictionary of Zoology | 1999 | 313 words | Copyright

Siphonophora (Siphonophorida, siphonophores; phylum Cnidaria, class Hydrozoa) An order of cnidarians whose members produce highly polymorphic colonies without skeletons and without free, sexual medusae. They consist of floating or free-swimming assortments of polypoid and medusoid individuals attached to a stem.

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MICHAEL ALLABY. "Siphonophora." A Dictionary of Zoology. 1999. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

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