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Kevin F. Fitzgerald, BS

Phylum Platyhelminthes Class Turbellaria Number of families 102

Thumbnail description

Mostly free-living flatworms with a cellular epidermis that is usually ciliated; the mouth leads to a stomodeal pharynx and incomplete gut_

Photo: A flatworm (Pseudoceros bimarginatus) showing warning coloration. (Photo by ©A. Flowers & L. Newman/Photo Researchers, Inc. Reproduced by permission.)

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