SNAKES OF CEYLON. 













Synopsis 



or Cranial Characters of the 



SuB-j^ 



amily Hydrophiin;e. 





Nasals. 



I'l-iriin 

 tals. 



Frontal. 



iri. 



nit'e. 



Maxilla. 



IM|:i- 

 tilie. 





DenF 



tion. 



Oenus. 





lit 



I If 



H 



3'i 



h 



-if 



I 

 5 

 1 



1 ; 

 51 



P. 



I 

 S 



1! 



11 





Ill 



Hi 



P 





51 - 

 % 



11 



r 



1 



1 Pterygoid. 

 Mandibular. 



— ■ 



Yes jYes 



No 



Yes 



Yes 



Xn 





No 



No 





1 



Ve 3! Yes 



\ eS ', - - 



NO Yes 





5 to 6 



o to 



4 to 6 

 7 to HI 



5 to (i 

 7 to 10 

 Oto 7 



6 to 10 





9 to 1" 



12 to 13 



• 



Microcephalophis 



gracilis 



Yes Yes 

 Yes Yes 



No 



Yes 

 Yes 



\es 

 Yes 



So 

 i\"n 



= 



No 



No 



= 



No 



8 to li 5 

 7 to 8' 



6 to 7, 



7 tot' 



'? to 8~ 

 10 



11 to 13 

 16 



Micrur-eph-ilophis 

 Porrecticollis 



cantoris 

 obscurua 



Yes Yes 



No 



Yes 



Ves 



Yes 





No 













IS lo 21 



18 lo 211 



Dolichodira 



diadema 



Yes Yes 



No 





X.. 



No 





Yes 



No 











8 to 10 



13 In If, 



Atiiria 



fasciata 



Yes Yes 



No 





Yes 



Ye. 





No 



-li In 











20 In 21 



10 to 20 



Lioselasma 



iuamillaris 



Yes 



Yes 



No 



Yes 



Yes 



Yes 





No 



No 











12 to II 



13 to Hi 



do. 



spiralis 



Yes 



v r 



No 

 1 



Yes 







= 



No 



? 



No 



I; } 



No 



Yes 



No 



I.", to HI 

 ? 



111 to 17 

 1 



do. 

 do. 



bi tuber cu lata 



Yes 



Yes 



No 



Yes 



Yes 



Yes 





No? 



No 











11 to 12 



8 . 

 7 toE" 



21 to 22 



18 t" 20 



Chitulia 





Yes 



Yes 



No 



Yes 



Yes 



Yes 



3/4 



No 



No 



i/« 









10 to 2.", 



22 t.. 211 



['nl\u,lnfifn:.vn.')ihu> rsrulescens 



? 



? 



1 





? 



? 



? 





? 











20 



Polypholophis 



neglectus 



? 



1 



1 



7 









? 



? 



y 





? 









14 



Meltmomystax 



nigrocinctus 



Yes 



Yes 



No 



1 es 





Yes 





No 



Yes 



4/5 



Yes 



Yes 



No 





8 to ? l ° 

 7 



12 to 16 



17 lo 10 



Kerilia 





Yes 



Yes 



No 



"w. 



No 



Yes 



> 



Yes 



Yes 



1/2 



No Yes 



Yes 



4 to 5 



17 



16 to 17 



Prsescutata 



viperina 



Yes 



Yes 



No 



Yes 



Yes 



> 



No 



No 



t/2 » 



No Yes 



No 





7_ to 8 * 



20* 



IS to 10* 



Astrotia 



stokeai 





No 



Yes 



Yes 



No 



Yes 





Yes 



Yes 



1/2 



.Nil Yes 



Yes 





I.", to Hi 



16 



Enhydrina 



valakadien 





Ves 



Xn 



Yes 



No 



Ye- 



_'/a tc. :;■ I 



Ye» 



No 



3/5 



■No Yes 



Yes 





18 to 22 



1.1 lo 111 



Lapemia 





Yes 



Ves 



Ni. 



Yes 



No 





J/:Ho:;/.j 



\ e. 



No 



3/5 



No Yes 



Yes 







17 



13 In 1 1 





hardwickei 



Yes 



Yes 



No 



Yes 



No 



N.. 



3/4 



Yes 



Yes 





No Ves 



No 







23 to 27 



111 to IS 





fatlcSita 





No 



Nn 





X.i 



v., 



4/3 



Ves 



No 



2/3 



Yes No 







6 



Hi to 17 



12 



Lnti cauda 



No 



No 



Nr. 



So 



No 



Xn 



4/3 



Yes 



No 



2/3 



Yes ' No 



Yes 



1 



13 



9 



do. 



colubrina 















These d 





ire tnk 







le.oii 



■ il: It, 



ilenger's 



silnloe l 



e (Vol. Ill 



, page 28 







6(6)20 



