Stentor

The trumpet animalcule Stentor is one of the largest unicellular organisms. Most of the time it lives attached to a surface. With it’s cell stretched Stentor feeds on bacteria and other small creatures using a crown of fused cilia (hairlike structures). But when disturbed it uses it’s cilia to locomote. As an aid to reach a large size, sometimes two millimetres long, Stentor has within it’s cell a string of many nuclei.