115 



Head small ; neck slender. Two post- 

 oculars ; 27 to 29 series of scales round the 

 neck. Ventrals not twice as broad as the 

 adjoining scales. Trunk with from 43 to 61 

 black-rings, not tapering on the sides. ^- mgrocinda. 



Head rather small ; neck slender. Two 

 postoculars ; 28 series of scales round the neck, 

 ventrals more than twice as broad as the 

 adjoining series. Trunk with from 42 to 48 



cross-bands. - „ elegans. 



Head rather small ; neck slender. One 

 postocular ; 83 to 35 series of scales round the 

 neck ; vertical short. „ torquata. 



D Head very small ; neck exceedingly slender : 



Liopala, (Gray), Gthr. 



The length of the thin part of the body is 

 more than one-third of the total. One post- 

 ocular ; 31 to 33 series of scales round the neck. 

 Trunk encircled by from 59 to 67 blackish 



rings. ,, chlori*. 



The length of the thin part of the body is 

 one-third of the total. One postocular ; 31 to 

 33 series of scales round the neck. Trunk 

 with from 48 to 58 blackish cross-bands 

 extending to the middle of the side. „ Undsayi. 



Two postoculars ; 26 to 28 series of scales 

 round the neck. Ventrals 376. Trunk with 

 from 60 to 64 rhombic blackish cross-bars ; 

 sides and belly not banded. ,, aMceps. 



