77 



A. OLivACEUS, Beddome. 



Scales 17. Ventrals 224, siibc. 75. Labials 5 (3). Dark 

 greenish olive, paler below ; four dorsal series of small 

 black dots. 

 Nilgiris. 



A. SAGITTARIUS, Cantov. 



Scales 17. Ventrals 216-245, subc. 57-70. Labials 7 



(S and 4). Reddish or greyish olive ; blackish dorsal line, 



beneath which the colour darkens ; vertebral series of dots ; 



head brown ; dark collar edged with yellow ; belly yellowish, 



with a blue lateral line and ventral dots. l 



Penang, Benf^al. 



/I 



A. HUMBERTI, Jan. '^^^ 



Scales 17. Ventrals 175, subc. 55. Labials 10 (4, 5 & 6) 

 7th and 9th contiguous below. Reddish olive ; punctulated 

 dorsal line, beneath which the colour darkens ; vertebral ^ a ' „ 

 series of black yellow-edged dots ; black, yellow-edged .^ 



collar ; belly white, dotted. - 



South of India, Ceylon. ,—< 



A. coLLARis, Gray. 



Scales 17. Ventrals 177, subc. 102. Tail nearly one- 

 third. Labials 10 (4, 5 and 6). Greyish brown, with 

 anterior vertebral series of black dots ; broad black collar 

 with posterior yellow edge, produced forwards to the eyes ; 

 bellv white, dotted. 

 Himalayas. 



A. MELANOCEPHALUS, Gray. 



Scales 17. Ventrals 152, subc. 65. Labials 10 (4, 5 & 6) 

 7th and 9th contiguous below. Light brown, with two 

 anterior white stripes commencing from a black collar, and 

 interrupted by square black spots ; belly white, spotted ; 

 head brown, lips yellow. Tail one -third (?). 



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