[In addition to most of the systematic works quoted at p. 441, the following are some of the more important sources of information as to the structure of recent and fossil Reptiles: - ]

1. "Erpetologie generate, ou histoire naturelle complete des Reptiles." Dumeril and Bibron. 1834-54.

2. "Reptiles of British India." Gunther. ' Ray Society.' 1864.

3. "Catalogue of Colubrine Snakes, Lizards, etc., in the British Museum." Gunther. 1844-58.

4. "Catalogue of the Shield Reptiles in the British Museum." J. E.

Gray. 1855.

5. "Monograph of the Testudinata." Bell. ' Ray Society.' 1836.

6. "Anatomia Testudinis Europeae" Bojanus. 1819-21.

7. "History of British Reptiles." Bell. 1839.

8. "Histoire des Quadrupedes ovipares." Lacepede. 1788-89.

9. "Histoire naturelle des Reptiles." Daudin. 1802.

10. "Systema Reptilium." Fitzinger. 1843.

11. "Anatomie und Naturgeschichte des Drachen." Tiedemann. 1811.

12. Article "Reptilia." Rymer Jones. ' Todd's Cyclopaedia of Anatomy and Physiology.' 1847-49.

13. "North American Herpetology." Holbrook. 1836-43.

14. "Catalogue of North American Reptiles." Baird and Girard. 1853.

15. "Homologies of some of the Cranial Bones of the Reptilia, and on the Systematic Arrangement of the Class." Cope. 'Amer. Assoc. for the Advancement of Science.' 1870.

16. "Thanatophidia of India." Fayrer.

17. "On Hatteria." Gunther. ' Phil. Trans.' 1867.

18. "Odontography." Owen. 1840-45.

19. "Entwickelungsgeschichte der Natter." Rathke. 1837.

20. "Entwickelung der Schildkroten." Rathke. 1848.

21. "Entwickelung und Korperbau der Krokodile." Rathke. 1866.

22. "Saurier des Muschelkalkes." Von Meyer.

23. "Saurier aus dem Kupfer-Schiefer der Zechstein-formation." Von Meyer.

24. "Report on Fossil Reptiles." Owen. 'Brit. Assoc. Reports.' 1841.

25. "On Dicynodon." Owen. 'Trans. Geol. Soc.' 1845.

26. "Descriptive Catalogue of the Fossil Reptilia and Fishes in the Museum of the Royal College of Surgeons of England." Owen.

27. "Catalogue of the Fossil Reptiles of South Africa in the Collections of the British Museum." Owen. 1876.

28. "Monographs of the Fossil Reptiles of the Jurassic Formation of Britain." Owen. 'Palaeontographical Society.' 1859, 1861, 1862, 1863, 1869, 1870.

29. "Monographs of the Fossil Reptiles of the Cretaceous Formations of Britain." Owen. 'Palaeontographical Society.' 1851, 1853, 1855, 1856, 1857, 1858, 1859, 1863, and 1872.

30. "Monograph of the Cretaceous Reptiles of the London Clay." Owen and Bell. ' Palaeontographical Society.' 1849.

31. "On a Carnivorous Reptile (Cynodraco major), etc." Owen. 'Quart.

Journ. Geol. Soc.' 1876.

32. "On Evidences of Theriodonts in Permian Deposits." Owen. ' Quart Journ. Geol. Soc' 1876.

33. "On the Stagonolepis Robertsoni." Huxley. 'Quart. Journ. Geol.

Soc.' 1859.

34. "On a new Specimen of Telerpeton Elginense." Huxley. ' Quart.

Journ. Geol. Soc' 1866.

35. "On Hyperodapedon." Huxley. ' Quart. Journ. Geol. Soc.' 1869.

36. "On the Affinities between the Deinosaurian Reptiles and Birds."

Huxley. 'Quart. Journ. Geol. Soc.' 1870.

37. "On the Classification of the Deinosauria," etc. Huxley. 'Quart.

Journ. Geol. Soc.' 1870.

38. "Catalogue of Ornithosauria." Seeley.

39. "Geology of Oxford and the Thames Valley." Phillips. 1871.

40. "Structure of the Skull and Limbs in Mosasauroid Reptiles." Marsh.

'Amer. Journ. Sci. and Arts.' 1872.

41. "Cretaceous Reptiles of the United States." Leidy. 'Smithsonian Contributions to Knowledge,' vol. xiv.

42. "Synopsis of Extinct Batrachia and Reptilia of North America."