Differential interference contrast image of a rotifer (Floscularia ringens) feeding. Its rapidly beating cilia (hair-like structures) bring water that contains food to the rotifer. When their cilia be...

Apical oral view of Didinium. Showing the proboscis containing extrusive organelles to demobilize and eventually engulph it's prey. Metachronous waves of cilia in the anterior girdle of the two charac...

Didinium nasutum showing the two prominent girdles of cilia in full metachronous beat. If you look at higher magnification you will see the occasional short, blunt clavate cilia. These are known to no...