paramecia

In one bottle, containing decaying chara, Paramecia abounded.

This was known as conjugation, and is seen among Paramecia and some other species to-day.

The viability of paramecia and euglenae in the digestive tract of cockroaches.

He couldn't remember clearly he was so tired—the rock basin had been literally swarming with paramecia and other forms of life.

The Paramecia, of which there are various species, have always been favourite objects with microscopists.