The product is a textbook titled "Ecology and Classification of North American Freshwater Invertebrates" edited by James H. Thorp, and Alan P. Covich. Published by Elsevier Science & Technology in 2001, this revised edition features illustrations and is designed for advanced adult education levels. The textbook covers a subject area of science, specifically focusing on life sciences, ecology, and zoology, with 1056 pages providing in-depth information on the ecology and classification of North American freshwater invertebrates.

See photos, including table of contents.   Includes glossary, index, and extensive liberature citations.