SNAKES OF CEYLON. 



Synopsis of Cranial Characters of the Sub- 



Nasals. 



Prefron- 

 tals. 



Frontal. 



Parie- 

 tal. 



Quad- 

 rate. 



Maxilla. 



Pala- 1 

 tine. 1 





Den 



■+-> 



a 

 o 



S-l 



o 



© 



a 



P 



§.2 



S3 

 o « 



a 



tug 



o 



'cS 



.2 



eS 

 P. 

 60 



.9 



© 



© 



h 



a a 

 •430 

 ©£ 

 © 



6B 



a 

 



+s 



% 



© 



3 



S"S 



be b 



a n 



© ra 

 © — 



>. 







^a 



© 



'© 



M 





Si 



U 



S-3 



>> 



t3T3 

 cl 



>s © 



©4^ 



SI 



© 1 



c*Z- 



rt © 

 £S a 



© 



a 

 lid 



2x 



ai a 



c 



© 

 a 

 '-5 



P4 



Yes 



Yes 



No 



Yes 



Yes 



No 





No 



No 





! 



Yes |Yes 



No 



5 to 6 



8 



Yes 



Yes 



No 



Yes 



Yes 



No 



— 



No 



No 



= 



Yes Yes 



No 



5 to 6 



7 



Yes 



Yes 



No 



Yes 



Yes 



No 



= 



No 



No 



= 



No Yes 



No 



4 to 6 



7 



Yes 



Yes 



No 



Yes 



Yes 



Yes 



= 



No 



No 



= 



No 



Yes 



No 



7 to 10 



8 to H 



Yes 



Yes 



No 



= 



No 



No 



= 



Yes 



No 



= 



No 



Yes 



No 



5 to 6 



7 to 8 



Yes 



Yes 



No 



Yes 



Yes 



Yes 



= 



No 



Slisht 



2/3 



No 



Yes 



No 



7 to 10 



5 



Yes 



Yes 



No 



Yes 



Yes 



Yes 



— 



No 



No 



4/5 



No 



Yes 



No 



6 to 7 



6 to 7 



Yes 



Yes 



No 



Yes 



Yes 



Yes 



= 



No 



No 



2/3 



No 



Yes 



No 



6 to 10 



7to< 



9 



9 



9 



9 



9 



9 



9 



9 



9 



? 



9 



9 



9 



9 



9 



Yes 



Yes 



No 



Yes 



Yes 



Yes 



= 



No? 



No 



4/5 



No 



Yes 



Yes 



9 to 11 



8 



Yes 



Yes 



No 



Yes 



Yes 



Yes 



3/4 



No 



No 



1/2 



No 



Yes 



No 



13 to 17 



7to£ 



? 



? 



9 



? 



? 



? 



? 



9 



? 



? 



? 



? 



9 



11 to 12 



? 



9 



9 



? 



9 



9 



9 



? 



9 



9 



9 



? 



? 



9 



lto2 



9 



Yes 



Yes 



No 



Yes 



Yes 



Yes 



= 



No 



Yes 



4/5 



Yes 



Yes 



No 



7 to 9 



8tol 



Yes 



Yes 



No 



sub- 



No 



Yes 



> 



Yes 



Yes 



1/2 



No 



Yes 



Yes 



4 to 5 



7 



Yes 



Yes 



No 



equal 



Yes 



Yes 



Yes 



> 



No 



No 



1/2 ? 



No 



1 

 Yes 



No 



7* 



7 to 8 



No 



No 



Yes 



Yes 



No 



Yes 



= 



Yes 



Yes 



1/2 



No 



Yes 



Yes 



3 to 5 



5to( 



Yes 



Yes 



No 



Yes 



No 



Yes 



2/3 to 3/4 



Yes 



No 



3/5 



No 



Yes 



Yes 



3 to 4 



5to( 



Yes 



Yes 



No 



Yes 



No 



Yes 



2/3 to 3/4 



Yes 



No 



3/5 



No 



Yes 



Yes 



3 to 5 



5to( 



Yes 



Yes 



No 



Yes 



No 



No 



3/4 



Yes 



Yes 



1/2 



No 



Yes 



No 



8 to 10 



6 to: 



No 



No 



No 



No 



No 



No 



4/3 



Yes 



No 



2/3 



Yes 



1 No 



Yes 



1 



5 



No 



No 



No 



No 



No 



No 



4/3 



Yes 



No 



2/3 



Yes 



1 No 



Yes 



1 



6 



* These details are taken from the figure in Boulenger's Catalog 



47 



