| Parameciidae | |
|---|---|
| Paramecium aurelia, from the genus Paramecium | |
| Scientific classification | |
| Domain: | Eukaryota |
| (unranked): | Sar |
| (unranked): | Alveolata |
| Phylum: | Ciliophora |
| Class: | Oligohymenophorea |
| Order: | Peniculida |
| Family: | Parameciidae |
Parameciidae are a family of ciliates in the order Peniculida; the body has differentiated anterior and posterior ends and is bounded by a hard but elastic pellicle.