420 ADDENDA AND COERIGENDA. 



the praefrontals ; frontal hexagonal, once and two thirds as long as 

 broad, much longer than its distance from the end of the snout, as 

 long as the parietals ; loreal nearlj^ as deep as long ; one pra3- and 

 two postoculars ; temporals 1 + 2; six upper labials, third and 

 fourth entering the eye, fifth very large ; anterior chin-shields 

 a little longer than the posterior, in contact with the symphysial 

 and three lower labials. Scales in 15 rows. Veutrals 122 ; anal 

 entire ; snbcaudals 24. Dark purplish bro\\Ti above, some of tho 

 scales edged with black ; a black arrow-headed marking on the 

 nape, the apex on the parietals ; labials yellowish, with black 

 sutures ; belly yellowish, with large black spots. 



Total length 340 millim, ; tail 40. 



Mountains of Burma. 



a. 2 (V. 122 ; C. 24). Toungyi, S. Shan States. E. W. Gates, Esq. 



[P.]. 



