eggs are not fecundated until after their expul- 
sion from the female; hence they are merely 
provided with a thin membranous covering. The 
eggs of others, as the tortoise’s, have a soft, 
tough skin, resembling parchment, while, in 
other genera, the eggs are furnished with a hard, 
calcareous shell. In those species which are vi- 
tod 
Oc Roh 
10. 
mls; 
19. 
20. 
Crass. 
REPTILIA. 
First Sus-Cuass. 
PULMONEA. 
OrpveER I. 
CHELONII. 
First FAMILY. 
TESTUDINIDA. 
a Testudinina. 
. Testudo, L. 
Sub-genera, 3. 
. Terrapene, Bonap. 
. Kinosternum, Bonap. 
. Emys, Bonap. 
Sub-genera, 2. 
. Hydraspis, Bell. 
. Chelonura, Flem. 
6 Chelydina. 
. Chelys, Dumer. 
ec Trionicina. 
. Trionix, Geoff: 
——e 
SECOND FAMILY. 
CHELONIDA. 
a Sphargidina. 
. Sphargis, Merr. 
6 Chelonina. 
Chelonia, Brong. 
OrveErR II. 
SA URI. 
, THIRD FAMILY. 
ICHTHYOSAURI. 
. Teleosaurus, Geoffr. 
Steneosaurus, Geoffr. 
. Ichthyosaurus, Koenig. 
. Saurodon, Hays. 
. Plesiosaurus, Conybeare. 
. Geosaurus, Cuv. 
. Megalosaurus, Buckland. 
FourtH FAMILY. 
CROCODILI. 
Crocodilus, Cuv. 
Sub-genera, 3. 
Firta FAmMIny. 
LACERTIFORMES. 
First Sus-F amity. 
LACERTIDA. 
a Tupinambina. 
Varanus, WVerr. 
Sub-genera, 4. 
Teius, Merr. 
Sub-genera, 6. 
6 Lacertina. 
. Lacerta, Z. 
REPTILES. 
Sub-genera, 2. 
22. Tachydromus, Oppel. 
SEconD SusB-F'AMILY. 
STELLIONIDA, 
a Agamina. 
23. Uromastix, Cuv. 
24. Cordylus, Gronov. 
25. Stellio, Daud. 
Sub-genera, 2. 
26. Agama, Daud. 
Sub-genera, 15. 
27. Lophura, Gray. 
28. Draco, L. 
Sub-genera, 2. 
29. Pterodactylus, Cuv. 
30. Chlamydosaurus, Gray. 
6 Iguanina. 
31. Iguana, Cuv. 
32. Ctenosaura, .Wiegm. 
33. Ophryessa, Bove. 
34. Leiocephalus, Gray. 
35. Basiliscus, Daud. 
36. Polychrus, Cuv. 
37. Ecphimotes, Fitzinger. 
38. Ophlurus, Cuv. 
389. Anolius, Cuv. 
40. Mosasaurus, Conybeare. 
41. Iguanadon, Mantell. 
THIRD SUB-f AMILY. 
GECKOTID&, 
42. Cirtodactylus, Gray. 
43. Euplephoris, Gray. 
44, Phyllurus, Gray. 
45. Gymnodactylus, Spix. 
46. Stenodactylus, Cuv. 
47. Spheroidactylus, Cuv. 
48. Ptyodactylus, Gray. 
49. Phyllodactylus, Gray. 
50. Thecadactylus, Cuv. 
Sub-genera, 4. 
51. Hemidactylus, Gray. 
52. Platydactylus, Cuv. 
Sub-genera, 6. 
FourtH SusB-FAMILy. 
CHAMALEONID, 
53. Chameleon, Daud. 
Firth Sus-F AMILY. 
SCINCIDZ. 
54. Scincus, Daud. 
Sub-genera, 3. 
55. Gymnophthalmus, Merr. 
56. Spondylurus, Fitz. 
57. Heteropus, Wiegm. 
58. Gerrhosaurus, Wiegm. 
59. Gerrhonotus, Wiegm. 
60. Trachysaurus, Gray. 
61. Cicigna, Gray. 
S1xTH FAMILY. 
ANGUIDZ. 
* Tetrapodi. 
62. Seps, Daud. 
Sub-genera, 5. 
63. 
64. 
65. 
43 
viparous, the eggs are regularly formed, but are 
hatched internally, as in vipers, &c. 
The following arrangement of the repiilia is 
that given by the prince of Musignano ; and, 
although it presents points of objection, these 
are as few as in any other attempt of the kind; 
added to which it is the latest :— 
Chalcides, Daud. 
Sub-genera, 4. 
** Bipedi. 
Bipes, Lacep. 
Sub-genera, 2. 
Chirotes, Cuv. 
nae Jy ores, 
a Anguina. 
. Pseudopus, Merv. 
. Ophisaurus, Daud. 
. Anguis, ZL. : 
. Acontias, Cuv. 
6 Amphisbenina. 
. Typhlos, Schn. 
. Amphisbena, Z. 
Sub-genera, 2. 
OrveER III. 
SERPENTES. 
SEVENTH FAMILY. 
OPHIDII. 
First Sus-F AMILY. 
COLUBRID. 
a Ericina. 
. Anilius, Oken. 
Sub-genera, 2. 
. Erix, Daud. 
. Clothonia, Daud. 
6 Boina. 
- Boa, LZ. 
Sub-genera, 2. 
. Python, Daud. 
ce Colubrina. 
. Erpeton, Lacep. 
. Scytale, Merr. 
. Coluber, Z. 
Sub-genera, 13. 
d Acrochordina. 
. Acrochordus, Hornstedt. 
SEconD SuB-FAmILy. 
HYDRIDE, 
a Bungarina. 
. Bungarus, Daud. 
. Ophis, Wagler. 
6 Hydrina. 
. Hydrophis, Daud. 
Sub-genera, 4. 
. Disteria, Lacep. 
. Aipysurus, Lacep. 
Tuirp Sus-FAMILY,. 
VIPERID 4, 
a Viperina. 
. Vipera, Daud. 
Sub-genera, 4. 
. Sepedon, Merr. 
. Naja, Laur. 
. Elaps, Schw. 
Sub-genera, 2. 
. Platurus, Latr. 
