noun, plural vor·ti·cel·lae [vawr-tuh-sel-ee] /ˌvɔr təˈsɛl i/, vor·ti·cel·las.
Examples from the Web for vorticella
"On the whole—yes," said Vorticella, in a tone of concession.
"You are probably surprised to see no notices from the London press," said Vorticella.
The cilia exist at the anterior end, and extend down a lateral fissure as in Vorticella.An Elementary Text-book of the Microscope|John William Griffith
Among the remainder of my tiny captives were two beautiful members of the Vorticella family, Epistylis and Carchesium.Marvels of Pond-life|Henry J. Slack
Elie set to work with ardour and found that the stalk of the Vorticella had no muscular character.Life of Elie Metchnikoff, 1845-1916|Olga Metchnikoff