Alan P. Covich & James H. Thorp 
Ecology and Classification of North American Freshwater Invertebrates [EPUB ebook] 

The Third Edition of Ecology and Classification of North American Freshwater Invertebrates continues the tradition of in-depth coverage of the biology, ecology, phylogeny, and identification of freshwater invertebrates from the USA and Canada. This edition is in color for the first time and includes greatly expanded classification of many phyla. – Contains extensive and detailed classification keys for identification of diverse freshwater invertebrates. – Many drawings and color photographs of freshwater invertebrates. – Single source for a broad coverage of the anatomy, physiology, ecology, and phylogeny of all major groups of invertebrates in inland waters of North America, north of Mexico.