CONTENTS: 1. Helminthes : Introduction; 2. Phylum Platyhelminthes; 3. Class 1. Turbellaria (Contd.) Example. Dugesia (= Planaria); 4. Class 1. Turbellaria; 5. Class 2. Trematoda (Contd.) Example 1. Fasciola hepatica (Sheep Liver Fluke); 6. Class 2. Trematoda (Contd.) Example 2. Schistosoma (Blood Fluke of Man); 7. Class 2. Trematoda; 8. Class 3. Cestoda (Contd.) Example 1. Taenia solium (The Pork Tape worm); 9. Class 3. Cestoda (Contd.) Example 2. Echinococcus granulosus (The Dog Tapeworm); 10. Class 3. Cestoda; 11. Superphylum Aschelminthes (Pseudocoelomates); 12. Phylum Nematoda (Contd.) Type 1. Ascaris lumbricoides (The Common Roundworm); 13. Phylum Nematoda (Contd.) Type 2. Ancylostoma duodenale (The Common Hookworm); 14. Phylum Nematoda (Contd.) Type 3. Wuchereria bancrofti (The Filarial Worm); 15. Phylum Nematoda; 16. Determinate Development and Embryology in Turbellaria; 17. Regeneration Grafting in Turbellaria; 18. Ecology of Turbellaria; 19. Parasitism; 20. Parasitic Adaptations of Helminthes; 21. Helminthes and Human Diseases; Important Questions; Bibliography.