File Contents- 1. Vipera (Pitless viper) 2. Bungarus (Krait) 3. Eryx ( Rat snake) 4. Phrynosoma 5. Chelone 6. Hemidactylus 7. Alligator 8. Notopterus 9. Exocoetus 10. Labeo 11. Sphyrna 12. Chimaera 13. Clarius 14. Lepidosiren 15. Synaptura 16. Ambystoma 17. Axolotal larva 18. Hyla (Tree frog) 19. Siren (Mud eel) 20. Necturus (Mud puppy) 21. Salpa 22. Doliolum 23. Herdmania 24. Pristis 25. Acipenser 26. Amia 27. Protopterus 28. Echeneis 29. Hippocampus 30. Anguilla 31. Pavo christatus 32. Archaeopteryx 33. Struthio (Ostrich) 34. Ornithorhynchus (Duck billed platypus) 35. Echidna 36. Macropus (Kangaroo) 37. Pteropus (Bat) 38. Procavia (Hyrax) 39. Chick embryo 18 hours 40. Chick embryo 24 hours 41. Chick embryo 33 hours 42. Chick embryo 48 hours 43. Chick embryo 72 hours 44. Amphioxus T.S. passing through testes 45. Amphioxus T.S. passing through ovary 46. Amphioxus T.S. passing through caudal region 47. T.S. passing through liver (Mammal) 48. T.S. passing through pancreas (Mammal) 4 9