Invertebrate Zoology continues to be the most current, up-to-date manual available. The popular phylum-
by-phylum approach has been retained, providing a solid conceptual framework for advanced work in behavior, ecology,
physiology, and related subjects. Numerous exercises for studying the structure and function of invertebrates are
used. To complete each exercise, students must make observations, conduct investigations, and ask and answer questions
� all of which helps them gain a comprehensive understanding of invertebrates.
Phylogenetic descriptions outline and review each phylum before it is studied, helping students understand the
relationships and diversity among invertebrates.
Simple geological time scales trace the history of phyla with significant fossil records.
Etymon for each phylum name helps students understand the meanings of terms.
A pronunciation guide is included to help students learn new terminology quickly.
NEW�Illustrations throughout the text have been redrawn for greater clarity and new figures and photographs enhance
structures and forms not shown in the line drawings.
NEW�Index has been added for ease of use.
Table of Contents
Taxonomic Considerations and Evolution of the Invertebrates.