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platyhelminthes  The Platyhelminthes consist of two lineages: the Catenulida and the Rhabditophora The Catenulida, or “chain worms” is a small clade of just over 100 species  Eumetazoa > Phylum Platyhelminthes พลานาเรีย พยาธิใบไม้ พยาธิตัวตืด Flatworms have a flat body with an array of organ systems, but no body cavity

Platyhelminthes definition: a phylum of worms having bilateral symmetry and a soft, usually flattened body, comprising the flatworms  Platyhelminthes · Reefs of Guam · Freshwater Snails of Florida ID Guide · Land Snails of Papua New Guinea · Holmes Creek Biodiversity Inventory · Snails of

Platyhelminthes have dorsiventrally flattened body ,So called flat are mostly endoparasites found in animals including human beings  Another characteristic of the platyhelminthes is cephalization, which means that one end of the animal functions as a head The “head” contains a mass of nerve