ruAr. v.] 



CLASSIFICATION. 



99 



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

 as follows : — 



Innocuous Snakes < 



Venomous Colubrine 

 Snakes 



Viperine Snakes 



1. T_yplilo|.)ioce 



2. Toi'tricidas ... 



3. Xenopeltidse 



4. Uropeltidae 



5. Calaniaridae 



6. Oligodontidse. 



7. ColubridfB ... 



8. Homalopsidaj 



9. Psammophidaj . 



10. Rachiodontidfe. 



11. Dendrophidfe 

 1-2. Dryiophidaj 



13. Dipsasidse 



14. Scytalidse. 



15. Lycodontidffi 



16. Amblvcephalidse 



17. Pythonidse 



18. ErycidjB 



19. Acrochordida; .. 



( 20. Elapidae 



Ul. 



)22. 



(23. 



Dencbaspidida;. 

 Atractaspidida;. 

 Hydrophidse 



24. Crotalidfc 

 25 Viperidae 



Burrowing Snakes. 



Dwai'f ground-snakes. 



Colubrine Snakes. 

 Fresh-water Snakes. 

 Desert-snakes. 



Tree-snakes. 

 Whip-snakes. 

 Nocturnal tree-snakes . 



Fanged ground-snakes. 



Bhmt-heads. 



Pythons. 



Sand-snakes. 



Wart-snakes. 



Cobras, &c. 



Sea-snakes. 



Pit-vipers. 

 True vipers 



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



Fani. 



26. Trogonophidse ... 



27. ChirotidcB 



28. Amphisbsenidffi 



29. Lepidosternidise 



30. Varanidffi 



31. Helodermidae. 



32. Teida; 



33. Lacertidse 



34. Zonuridas 



35. Chalcidae. 



36. Anadiadse. 



37. Chirocolida*. 



38. Iphisadse. 



39. Cercosauridse. 



40. Chamsesauridaj. 



41. Gymnopthalmidfe 



42. Pygopodida; 



43. Aprasiadae. 



Amphisbsenians. 



Water Lizards. 



Teguexins. 

 Land Lizards 



Gape-eyed Scinks. 

 Two-legged Lizards 



H 2 



