In this article we will discuss about the structure of paramecium. This will also help you to draw the structure and diagram of paramecium. 1. Fresh water, free living, omnipresent and is found in stagnant water. 2. Body like a slipper with anterior end narrow and rounded and posterior e-c broad and pointed. Uniform ciliation all over body except at post, end where ciliation are large & form a caudal tuft. 3. Body is surrounded by a tough & elastic pellicle. 4. Cytoplasm well differentiated ... The Diagram of Paramecium demonstrates the anatomy of this single-celled organism. Paramecium structure consists of trichocysts, contractile vacuoles, and cilia among other specialized organelles. Learn about the unicellular ciliated protozoan Paramecium, its classification, features, locomotion, nutrition and reproduction. See diagrams, examples and FAQs on Paramecium and its life cycle. Description A diagram of Paramecium caudatum Species of Paramecium range in size from 0.06 mm to 0.3 mm in length. Cells are typically ovoid, elongate, or foot- or cigar-shaped. The body of the cell is enclosed by a stiff but elastic structure called the pellicle.