| Acotylea | |
|---|---|
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| Stylochus pilidium (Goette, 1881) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Order: | Polycladida |
| Suborder: | Acotylea Lang, 1884 |
| Synonyms | |
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Acotylea is a suborder of free-living marine turbellarian flatworms in the order Polycladida.