















SNAKES OF 



CEYLON. 



















''^ ,v„n^ «, MOST CONSTANT FeATWES IN THE I^p^n OF NOKMAX* SPECIES 0, THE S HB-EAM IL Y H«.ROHHIN*. 



Rostral. 



1! 

 I 



Inter- 



Nasals. 



H 

 If 



Pra . I Pane- 



irmitil- ta Is 



|VMi|M>r;il-. 



falSs. Sublinguals. 



Iniralaiiais. 



Cuneate. 





Costals. 1 Ventrals. 





■g . 



if 

 II 



1 = 



5 5 



1 



| 



l 



5 



I 

 | 



I 

 1 



S 



1 

 1 



1 



Hi 



ill 



r 



l 





k 



{I 



\ 



I 



Ii 



! 

 I 

 e 



1 

 S 



1 



o ,i Name of Species. 



1 



4 1 None 



** 



2nd 



Yes 



One 



One 



1st A 



2nd 



3rd & 

 4th 



Yes 



Yes 



> 



: 



(lone 



- 



17-21 



26-32 



27-35 



Juxt Central 217-zuu 

 lleure-of- 

 8 tubercles 



mesially in 



post body 



«*■ Kiacuis 





None 



2nd 



3rd 



Yes 



One 



One 



a" ■:,<■'< 



3rd i. 

 4th 



Yes 



Yes 



=" 



2 



Horn 



- 



21-25 



27-36 



36-46 





Central 



iiLiiir.'-u'.' 

 Mlk-M-IrS 



77-174 



hivi-lr.l 



IM ,-i;ill\ III 

 Mlid Illl.l 



,,n,;l l.,.,l\ 

 \r;iil\ -,\ 



M. cantoris 





None 



2nd 



2nd 



Yes 



One 



One 



1st & 

 2nd 



3rd & 

 4th 



Yes 



Yes 



=or> 



3-4 



line 



3rd& 



19-23 



25-32 



26-33 



Imb. 



Short 277-354 

 bidentate 



P. obscurus 





None 



2nd 



2nd 



Yes 



One 



able 



1st, A 



3rd A 



M.s 



Yes 



* 



3-4 



One 



■&* 



32-41 



37-54 



34-46 



Snbimb. 

 ot juxt. 



SL 



374-460 Nearly 2/1 

 everywhere 



1>. dladema 





None 



2nd 



2nd 



Yes 



One 



One 



2ml 1 



3rd 4. 



4th 



Yes 



Yes 



= or> 



3-4 



line 



3rd& 

 4th 



25-33 



37-57 



37-57 



Subimb. 



Round 376-513 



centric 

 tubercle 



yearly 2/1 



A. fasciata 



4 None 



2nd 



2nd 



Yes 



Vat 



able 



1st A 



3rd <S 



Yea 



Yes 



< 



3-4 



One 



3rd& 



25-21 



31-40 



34-41 



Juxt. 



Hi, iind 

 tubercle 



Round 



tubercle 



316-367 



Nearly 2/1 



■vrr\ wlii'iT 



L. maraillaris 





None 



2nd 



2nd 



Yes 







Vari- 

 able 



.'lid 



3rd A 



4th 



Y'es 



Yes 



< 



3-4 



due 



3rd* 



27-31 



30-36 



27-31 



Imb. 



282-373 



Nearly 2/1 



■■■vvr\ wheiv 



L- spiralis 





None 



2nd 



2ml Yes 



Vat 



able 



1st A 



It'll. 'a 



Yes 



Yes 



" 



3-4 



All 



After 



27-31 



33-44 



34-43 



Imb., 



subimb.. 



Short 296 -398 



Nearly 2/1 



cvervwIiiTi' 



L. cyanocincta 





None 



2nd 



2nd 1 Yes 



One 



One 



1st A 

 2 ml 



::rV A 



Yea 



Yes ? 



- 



3-4 



One 



3rd* 



28 



47 



- 



Sidjiliili 



or juxt. 



"keel 



Oideiil ,le 

 keel 

 Round 



e, , ^,,1 ,i>' 

 h,l,e!,■lc 



keel 

 Short 



278 



Nearly 2/1 



.■wry when- 



L. bitnberculata 





None 



2nd 



2nd | Yes 



Var 



able 



1st A 



2nd 



3rd & 



Yes 



No 



< 



3-4 



X,.,, 





33 - 1 1 



38-45 



33-4i 



Subimb. 



21S-2IU 



Nearly 2/1 



everywhere 



C orData 





None 



2nd 



2nd 



No 



Va 



able 



1 st A 



3rd <S 

 4th 



Vat 



able 



< 



3&4 



Ilia 



3rd* 

 4th 



30- 1: 



42-53 



36-« 



Subimb. 



277-330 



Nearly 2/1 



evervwhm'i 



P. caerulescens 





None 



2nd 



2nd 



Yes 



\ ..: 



able 



1st A 



3rd* 



Yes 



Yes 



Sub- 



3 



Hill 



3rd& 



18 



54 



45 



Imb. 



410-450 Nearly 2/1 



P. neglectus 

















2nd 

























median kee 1 



evervwhen 









2nd 





Yes 



Vat 



able 



1 st. A 



3rd 4 



Yes 



No 









3rd & 



27-32 



36-48 



36-4 



Imb. 





3i>.-,-33'. 



Nearly 2/1 



M. nigrocinctus 



















til,. <. 























median 





everywhere 



















'a':, n 























keel 











None 



None 



None 



Yes 



Cnnl 



Uh 



1st A. 



4th 



Yes 



Vari- 

 able 



' 



Only 



Sill) 





17 





19-2 



Imb. 



median 



21!l-24i: 



Nearly 2/1 



evervwheR 



K. jerdoni 





None 



2nd 



None ! Yes 



lab 

 Vat 



al 



ah li- 



1st A 



3rd i 



Yea 



Yes 





3- 1 



tin, 



3rd* 



27-3 



39-51 



35-4 



Juxt. 



keel 

 Short 



235-271 



3/1 anteri 



P. vlpertoa 

















4tu,' i 













4th 









median 





orly, liearlv 





































keel 





2/J I'l.M- 

































































4th A 



































2nd 



2nd 



Yes 



Vat 



able 



1st, 



2„.l.. ■ 



3rd 



4th, 

 6th 







Vat 



able 





After 



4 1-1. 



48-5 



41-5 



Imb. 



.Median 



230-20 



Not 



A. stokeBi 

























1.-1.21 



d. 









hideiitutc 



keel 

 Short. 





enlarged 







None 



1st 



2nd 



Yes 



Vat 



able 



l-l A 



Vari- 

 able 



\.,u. 



— 



- 



3-4 



X.m 



0I _ r 





50-7 



50-7 



) Imb. 



230.30 



Nearly 2/ 



E. valakadien 







































medial) 











None 



2nd 



2nd 



Yes 



Vat 



able 



1st. A 



3rd , 



4th 



:V„,l, 



— 



- 3-4 



,] 



Afte 



20-3 



30-4 



30-4 



subim!' 

 2 Juxt. 



hound 



151-21 



Entire 



L. curtus 









































aut'Tiuvh 











































tubercle 





iliviih-.l 







None 



1st 



2nd 



Yes 



Vat 



able 



1st A 



3rd A 

 4th 



.\.,„, 



— 



- 



3-4 



All 



Afte 



27,-3 



27-4 



27-3 



Juxt. 



Round 



130-21 



l >OSi-rji'ip|-.. 



Entire 



L. hardwickei 





























2nd 











centric 





;i.ini'lh.ll\ 











































tubercle 





divided 







None 



None 



2nd 



Yes 



Vat 



able 



1st A 

 2nd 



Vari- 

 able 



N 



— 





3-4 



\„u 





III ■:. 



41-6 



11-6 



Juxt. 



Central 



2M ■ :;:■, 



posteriorly 



Not H.platurua 





































flgure-of-S 





enlarged 





6 



pair 



None 



None 



Yes 





Vari- 

 able 



1st, 

 2nd. A 



4th 



STea 



Yes 



1 



2 



ill 



3rd 



Ill 



19 



17-1 



3 Imb. 



tubercle- 



Smooth 



210-24 



) More 



than 3/1 



L. laticaudata 











Yes 



Oar 



Vari- 



l,d. 



3rd A 



Yea 



Yes 



I i,r 





All 

















everywhere 

































21-2 



21-2 



1 Imb 





105 Jl 



3 More 

























2nd 















than 'Mi 



* A synopsis ca 



kijIv ill-;;] wilh )><mn<tlie;\U\Y>-* \ s ;i bnurmalit ies are much 







face must be studied. ; 

 to study first the char 



1,1 >t ^ii'l (lie- -■ l "..■'.' i in '-ii tails u, mi reborn] wilh other train 

 ictei >>i the cost :i Is (Column -Jin :uni .■isn.jrf-iiiit il smooth, ceu 



,M0 "' "''I'"' Mm ,,. d i ni. ■ ,,,, ,. , .,. ,, . . , 



:s in the synopsis, lie must assume thai it is aberrant bilaterally. The student, is recommended 



these features are bette 



seen ciorsiilly, .sometimes ventmlly. 



rayu 





ntuhei 









I'hi .:,■ leal,. 



e,. sli.iulil 1 



■ l.i.ikci 



tot at mill 



body. Sometlmea 



