Genus: Trichocerca
28 arter er funnet i Norge. Asymmetri er vanlig hos disse hjuldyrene.
Systematics :
| Kingdom | Animals (Animalia) | ||||
| Phylum | Hjuldyr (Rotifera) | ||||
| Order | Ploimida | ||||
| Family | Trichocercidae | ||||
| Genus | Trichocerca | ||||
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Responsible editor: Doris Jorde