254 



SCIILEGEL S ARRANGEMENT OP SERPENTS. 



EXPLANATION OF THE PLATES. 



A B, Head of Herpetodryas carinatus, shewing the designationn 

 of the large Scales or Plates that cover the heads of Serpents. 



Innocuous Snakes. 



Fig. 1. Tortrix Xenopeltis 



2. Calamaria lumbricoidea 



3. Ccirunella Cubella 



4. Xenodon inornatus 



5. Heterodon rhinostoma 



6. Lycodon Hebe 



7. Coluber consti'ictor 



8. Herpetodryas carinatus 



9. Psammophis lacertina 



10. Dendrophis formosa 



11. Dryiophis Catesbyi 



12. Dipsas cynodon 



13. Tropidonotus trianguli- 



gerus 



Fig. 14. Homalopsis Martii 



15. Boa canina 



16. Acrochordus fasciatus 



17. Python Schneideri 



Venomous Snakes. 



18. Elaps Surinamensis 



19 1 



„' * \ Elaps Jamesoni 



21. Bungarus semifasciatus 



22. Naja tripudians 



23. Hydrophis schistosa 



24. Trigonocephalus atrox 



25. Crotalus Durissus 



26. Vipera elegans 



