Parameciidae is a family of

ciliate The ciliates are a group of alveolates characterized by the presence of hair-like organelles called cilia, which are identical in structure to flagellum, eukaryotic flagella, but are in general shorter and present in much larger numbers, with a ...

s in the order

Peniculid The peniculids are an order of ciliate protozoa, including the well-known ''Paramecium'' and related genera, such as ''Frontonia'', ''Stokesia (ciliate), Stokesia'', ''Urocentrum'' and ''Lembadion''. Most are relatively large, freshwater forms t ...

a. Members of this family have differentiated

anterior Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pro ...

and posterior regions and are bounded by a hard but elastic pellicle. The family contains the genera ''

Paramecium ''Paramecium'' ( , , plural "paramecia" only when used as a Common name, vernacular name) is a genus of eukaryotic, unicellular ciliates, widespread in freshwater, brackish, and Ocean, marine environments. Paramecia are often abundant in stagna ...

'' and '' Physanter''.

References

External links

* Ciliate families Oligohymenophorea {{Ciliate-stub