Polymorphida
| Polymorphida | |
|---|---|
 |
|
| Corynosoma wegeneri | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Acanthocephala |
| Class: | Palaeacanthocephala |
| Order: |
Polymorphida Petrochenko, 1956 |
| Families | |
Centrorhynchidae
Plagiorhynchidae
Polymorphidae
Polymorphida are an order of thorny-headed worms (phylum Acanthocephala). The adults of these parasitic platyzoans feed mainly on fish and aquatic birds.
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