80 30. I. Three Hole Mollusk. 2. Liver Leech. 3. Larva of same. 4 Larva of Double Hole. 5. Tapeworm. 21. Tapeworm. 38. Navel Snail 7 Kmbryo Tapeworms. 12. Scraggy Pimpled Worm. 8, 9. Scolex in "the Hollow of the Lungs of Way Snail. 10. Saw Tapeworm. 22. Develop¬ ment of Tapeworm in a Dog’s Intestines. 13. Head. 11. Joint of Pumpkin Tapeworm. 15. Head. 16. Joint of Black Tapeworm 19 20. Scolex de Quese Colony. 29. Ancyloceras. 26. Argonaut or Shin Boat Nautilus. 27. Ammonites. || 24. Cuttle Fish. 28. Ceratit Am¬ monite. 30. Turritela. 18. Joint of Swiss Tapeworm. 17 Head of same. 33. Edible Snail. 25. Pearly Nautilus. |) 23. Musk Pulpe 31 Oxygyrus, or Heteropod. 31. Field Snail. 32. Firola. 39. Dish Snail' 35. Spike Shell Snail. 40. Sea Hare. 37. Cone Snail. 36. Cerithium ' 31. 1. Thread Snail. 2. Elysia. 7. Spirifer. 15. Cockle Shell. 21. Spon- dylus. || 3. Hyalea. 4. Clio. 5. Terebratula. || 6. Barnacle. 10. Ship- worm. 14. Venus Muscle. 11. Mud Muscle. 31. Pedicellina. 22 Oys¬ ter. 13. Date Stone Muscle. 25, 24. Salpa. 27. Transparent Sea Sheath 28. Nipple Sea Sheath. [| 16. Artist Muscle. 17. Ham Muscle. 29. Golden BotrylJus. 38. Cassisdulus. 23. Exogyra. 12. Stone Borer 9. Terebratula. 39. Shield Sea Urchin. 32. Bugula Avicularia || is" Pearl Oyster. 19. Inside of same. 20. Variegated Scallop. 83. Horn- wrack Coral. 26. Fire Roller. 30. Lophopus Crystallinus (on rootlets of Duckweed). 37. Heart Urchin. 8. Pentamerus. 34. Synapta. 36 Sea Cucumber. 32. 1. Galerltes. 2. Piper Urchin. 6. Principal Medusa. 10. Nut Ur¬ chin. I 3. Sea Urchin. 4. Sun Star. 5. Serpent Star. 9. Encrinite 8. Pentacrinus. Ü 7. Hair Star. 19. Rotifer. 14. Penalula. IS. Phyl- lactis, or Sea Anemone. 12. Precious Coral. 23. Cydippe Pileus II 21 Venomous Cyanæa. 22. Rhizostoma Cuvieri. 11. Winding Coral" 18. Madrepora. 16. Sea Anemone. 17. Edwardsia. 13. Polyps. 33. 1. Rosary, or Praya. 3, 4, 5. Fail Torment. 22. Millola. 8. Cydippe Willsia. 12. Sarsia. 15. Plagiophrys. || 2. Physalis, or Portuguese Man of War. 19. Opelina. 17. Trumpeter. 25. Sun Animalcule. 26. Carpocanium. 27. Collozoum. 10. Georyonia. 9. Aurelia. 21. Light Animalcule. 14. Prorodon. 11. Tiaropsis. 34. Trichia. 24. Textu- lana. 20. Tripos Perinidiura. 16. Aspidiscus. || 29. Haliomma. 32. hlint Sponge. 13. Stvlonichia. 7. Hydra. 30. Amoeba. 31. Bathy- bius. 28. Eucyrtidium. 33. Protomyxa.