CHAP. V.] 



CLASSIFICATION. 



99 



The Ophidia, or Snakes, form the first order and are classified 

 as follows : — 



Fain. 



1. Typhlopidae 



2. Tortricidse 



3. Xenopeltidse 



4. Uropeltidae 



5. Calamaridae 



6. Oligodontidae. 



7. Colubridae 



8. Homalopsidse •• 



9. Psammophidse .. 

 Innocuous Snakes { 10. Rachiodontidae. 



11. Dendrophidae .. 



12. Dryiophidas 



13. Dipsasidae 



14. Scytalidae. 



15. Lycodontidae 



16. Amblycephalidae 



17. Pythonidae 



18. Erycida? 



19. Acrochordidae .. 



20. Elapidae 



Venomous Colubrine } 21. Dendraspididae. 



Snakes j 22. Atractaspididae. 



23. Hydrophidae 



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, &c. 



Viperine Snakes 



24. Crotalidae 

 25 Viperidae 



Sea-snakes. 



Pit-vipers. 

 True vipers 



The second order, Lacertilia, are arranged as follows : — 



Fam. 



26. Trogonophidse ... 



27. Chirotidae 



28. Amphisbsenidse 



29. Lepidosternidae 



30. Varanidae 



31. Heloderrnidae. 



32. Teidse 



33. Lacertidae 



34. Zonuridae 



35. Chalcidae. 



36. Anadiadse. 



37. ChirocoUdae. 



38. Iphisadae. 



39. Cercosaurid82. 



40. Chamaesauridae. 



41. Gymnopthalmidae 



42. Pygopodidae 



43. Aprasiadae. 



> Amphisbaenians. 



Water Lizards. 



Teguexins 



> Land Lizards 



Gape-eyed Scinks. 

 Two-legged Lizards. 



