Introduction to freshwater invertebrates ; An overview of freshwater habitats / James H. Thorp, Alan P. Covich -- Protozoa / William D. Taylor, Robert W. Sanders -- Porifera / Thomas M. Frost -- The freshwater cnidaria-- or coelenterates / Lawrence E. Slobodkin, Patricia E. Bossert -- Flatworms : Turbellaria and Nemertea / Jerzy Kolasa -- Gastrotricha / David L. Strayer, William D. Hummon -- Rotifera / Robert Lee Wallace, Terry W. Snell -- Nematoda and Nematomorpha / George O. Poinar, Jr. -- Mollusca : Gastropoda / Kenneth M. Brown -- Mollusca : Bivalvia / Robert F. McMahon -- Annelida : Oligochaeta and Branchiobdellida / Ralph O. Brinkhurst, Stuart R. Gelder -- Annelida : leeches, polychaetes, and acanthobdellids / Ronald W. Davies -- Bryozoans / Timothy S. Wood -- Tardigrada / Daine R. Nelson -- Water mites / Ian M. Smith, David R. Cook -- Diversity and classification of insects and collembola / William L. Hilsenhoff -- Crustacea : introduction and Peracarida / Alan P. Covich, James H. Thorp.

(cont.) Ostracoda / L. Denis Delorme -- Cladocera and other branchiopoda / Stanley I. Dodson, David G. Frey -- Copepoda / Craig E. Williamson -- Decapoda / H.H. Hobbs, III.