Polycladida
| Polycladida Temporal range: | |
|---|---|
| Pseudobiceros bedfordi (Persian carpet flatworm) | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Subphylum: | Rhabditophora |
| Order: | Polycladida Lang, 1884 |
| Suborder | |
The Polycladida represents a highly diverse clade of free-living marine flatworms. They are known from the littoral to the sublittoral zone (extending to the deep hot vents), and many species are common from coral reefs. Only a few species are found in freshwater habitats.