THE PRINCIPAL SPECIES OF POISONOUS SNAKES 



143 



.•16'Z.4.— (coutd.) 

 Families Sub-Families Gexera 



' Vijperintv 



VlPERID.E } 



\ 



Crofaliiue 



Viper a 



Pseudocerastes 

 Cerastes 



EcJiis 



A)ieistro(lou . 



^ LacJtesis 



Geographical Area 



/ Turkestan, Ural, Siberia, 

 I Caucasus, Persia, Ar- 

 menia, Western China, 

 India, Ceylon, Hima- 

 ( layas. 

 Persia. 



Arabia, Palestine. 

 I Persia, Arabia, India, Balu- 

 ( chistan, Afghanistan. 

 j Transcaspia, Turkestan, 

 1 Himalayas, Southern 

 j China, Formosa, Japan, 

 I Ceylon, Jaya. 

 ( South-eastern Asia, India, 

 I Southern China, Indo- 

 Cliina, Formosa, Suma- 

 tra. 



(3) AFBICA. 



CoLUBEiD.E Elapince ... 



Boiilengerina 

 Elaj^echis 



Noja 



Sepedon 



Aspidelaps . . . 

 Walterin)iesL(i 

 Homorelaps ... 



Dendraspis ... 



Central Africa. 

 Central and South Africa. 

 Egypt, Central and West 

 Africa, Morocco, Congo, 

 Angola. 

 f South Africa, Cape of Good 

 '" ( Hope. 



J South and South-east Af- 

 ( rica, Mozambique. 

 ... Egypt. 



f South Africa, Cape of Good 

 "'\ Hope. 



j Central and South Africa, 

 -! Angola, Great Lakes. 

 Congo, Transyaal. 



