Redia

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Related to F. Redi: Francesco Redi

redia

[′rē·dē·ə]
(invertebrate zoology)
A larva produced within the miracidial sporocyst of certain digenetic trematodes which may give rise to daughter rediae or to cercariae.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Redia

 

one of the parthenogenetic generations of the digenetic flukes, or trematodes, which parasitizes an intermediate host (mollusks). The redia develops in the body cavity of the worm’s first parthenogenetic generation, the sporocyst. It in turn produces the cercaria, the larvae of the sexually mature flukes. Unlike the sporocyst, the redia has a mouth opening, a pharynx, an intestine, and a birth pore.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.