Parenchymula

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parenchymula [‚par·əŋ′kim·yə·lə]

(invertebrate zoology)

The flagellate larva of calcinean sponges in which there is a cavity filled with gelatinous connective tissue.

Parenchymula

one of the free-swimming larval stages of sponges and numerous coelenterates. The elongated oval body consists of flagellate ectodermal cells and a mass of entodermal cells (parenchyma). In sponges, the parenchymula settles to the bottom and becomes attached; in coelenterates, it changes into the planula stage.

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