An Introduction to the Invertebrates (Paperback, 2 Revised edition)

Preface; Acknowledgements; Illustration acknowledgements; 1. The process of evolution: natural selection; 2. The pattern of evolution: methods of investigation; 3. Porifera; 4. Cnidaria; 5. On being a worm; 6. Platyhelminthes; 7. Nemertea; 8. Nematoda; 9. Annelida; 10. Mollusca: general and Gastropoda; 11. Mollusca: Bivalvia and Cephalopoda; 12. Arthropoda: general; 13. Crustacea; 14. Chelicerata and Myriapoda; 15. Insecta; 16. Animals with lophophores; 17. Echinodermata; 18. Invertebrate Chordata and Hemichordata; 19. Development; 20. Invertebrate evolutionary history; Further reading and references; Glossary; Index.