It was more thoroughly described by Christian Gottfried Ehrenberg in his two volume publication Die Infusionsthierchen als vollkommene Organismen (which roughly translates to “The Infusoria as Perfect Organisms”) in 1838.
Describiuno mellor Christian Gottfried Ehrenberg na súa publicación en dous volumes Die Infusionsthierchen als vollkommene Organismen (que se pode traducir por “Os Infusorios como Organismos Perfectos”) de 1838.