bell-animalcule

Updated: May 25, 2025

Without leaving the group of one-celled animals typified by Amoeba, we find colonies of the most elementary biological nature, where other natural obligations are added to the two of greatest importance. Some species of the bell-animalcule, Vorticella, provide characteristic examples of these primitive compound protozoa.

Henry Edward Crampton - The Doctrine of Evolution: Its Basis and Its Scope