This exquisitely illustrated book is the definitive guide to the identification of protozoa. As well as over 230 high-quality colour photographs, it contains 500 detailed line drawings, showing essential features and making speedy and positive identification possible. The succinct and authoritative text is supported by extensive references. Communities of protozoa are dealt with in a separate section, which covers a range of environments and contains information on the significance of these communities as indicators of contamination and pollution. As well as being an essential teaching aid, Free-Living Freshwater Protozoa is a valuable guide for professional biologists involved with water, sewage treatment, rivers, soils and environmental management, it is also an important reference source for food science laboratories and public health and regulatory bodies.