The cilia exist at the anterior end, and extend down a lateral fissure as in vorticella.
A species of vorticella was probably the first Protozoan that was ever observed.
"You are probably surprised to see no notices from the London press," said vorticella.
"On the whole—yes," said vorticella, in a tone of concession.
In some cases the vorticella assumes the form of a Podophrya (fig. 40), the surface becoming covered with tentacle-like processes.
Your amœba or vorticella, as the case may be, splits in two.
The general structure is similar to that of vorticella, but the individuals are elongate and occupy houses.
The form and structure of the individuals is not different from vorticella.
Examine a colony of vorticella in a watch-glass of water or in a drop of water on a glass slide under the microscope.
These were members of the vorticella family, called Cothurnia, and will be hereafter described.