Ectoprocta: Class Stenolaemata
Fossil and recent marine animals that have tubular zooids, calcified walls, and circular orifices. Protrusion of the circular lophophore does not depend on muscular deformation of body walls. They reproduce sexually by embryonic fission (polyembrony).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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