Revision of best-selling introduction to the biology of invertebrates through a survey by groups. The author emphasizes adaptive morphology and physiology while covering anatomical ground plans and basic developmental patterns. Rich illustrations, systematic resumes, and extensive citations make it a valuable reference source.

Table of Contents

Introduction. Protozoa. Sponges. Cnidarians and Ctenophores. Bilateral Animal. Flatworms, Gnathostomulids and Mesozoans. Nemerteans. Aschelminthes. Non-Segmented Coelomate Protostomes. Molluscs. Annelids and Pogonorphorans. Introduction to the Arthropods. Chelicerates. Crustaceans. Myriapods. Insects. Portochordates and Chaetognaths. Echinoderms. Lophophorates. Invertebrate Evolution.