CHAP. V.] 
CLASSIFICATION. 
99 
The Ophidia, or Snakes, form the first order and are classified 
as follows : — 
Innocuous Snak 
Venomous Colubrine 
Snakes 
Viperine Snakes ... 
Fam. 
1. Typklopid© 
2. Tortricid© 
3. Xenopeltid© 
4. Uropeltidae 
5. Calamarid© 
6. Oligodontid©. 
7. Colubrid© 
8. Homalopsid© ... 
9. Psammophid© ... 
10. Rachiodontid©. 
11. Dendrophid© ... 
12. Dryiophid© 
13. Dipsasid© 
14. Scytalid®. 
15. Lycodontid© 
16. Amblycephaiid© 
17. Pythonid© 
18. Erycid© 
19. Acrochordid© ... 
20. Elapid© 
21. Dendraspidid®. 
22. Atractaspidid©. 
23. Hydrophid© 
24. Crotalid© 
25 Viperid© 
Burrowing Snakes. 
Dwarf ground-snakes. 
Colubrine Snakes. 
Fresh-water Snakes. 
Desert-snakes. 
Tree-snakes. 
Whip-snakes. 
Nocturnal tree-snakes. 
Fanged ground-snakes. 
Blunt-heads. 
Pythons. 
Sand-snakes. 
Wart-snakes. 
Cobras, &e. 
Sea-snakes. 
Pit-vipers. 
True vipers 
The second order, Lacertilia, are arranged as follows : — 
Fam. 
26. Trogonophid© ... 
27. Chirotid© 
28. Amphisb©nid© 
29. Lepidosternid© 
30. Varanid© 
31. Helodermid©. 
32. Teid© 
33. Lacertid© 
34. Zonurid© 
35. Chaleid©. 
36. Anadiad©. 
37. Chirocolid©. 
38. Iphisad©. 
39. Cercosamid©. 
40. Cham©saurid©. 
41. Gymnopthalmid© 
42. Pygopodid© 
43. Aprasiad©. 
Amphisbffinians. 
Water Lizards, 
Teguexins. 
Land Lizards 
Gape-eyed Scinks. 
Two-legged Lizards. 
H 2 
