71 



S. TRILINEATUS, D. CUld B. 



Scales 17. Ventrals 145,subc. 54. Anal entire. Brown, 

 with a vertebral yellow stripe and a dorsal white stripe. 



S. PUNCTULATUS, Gray. 



Scales 19. Ventrals 180-202, subc. 52-62. Anal entire. 

 Brown, with about 20 light, black-edged cross-bands or pairs 

 of spots ; belly with square spots. Head whitish, with the 

 usual head -markings. Grows to upwards of two feet in 

 leno-th. 



Himalayas. 



S. BiCATENATUS, Gth\ Plate XI, fig. 4. 



Scales 19. Ventrals 161-180, subc. 86-47. Anal entire, 

 slight ventral keel. Labials 6, 7, or 8. Of stout habit. 

 Light reddish brown, with three darker stripes ; the verte- 

 bral stripe encloses a light median line and extends on the 

 vertical, separating two oblique head-markings that convei*o-e 

 from the dorsal stripes. Fillet across the eyes. Belly 

 white or fawn with alternate square spots. Grows to 2|- feet. 

 Common in Burma. 



S. ALBOCINCTUS, CautOT. 



Scales 19. Ventrals 175-181, subc. 47-65. Anal entire. 

 Brown, with about 18 white, dark-edged cross-bands, narrow 

 black cross-bands alternating ; belly white or spotted ; 

 usual head-markings. 

 Assam. 



S. FASCIOLATUS, Gthv. 



Scales 21. Ventrals 163, subc. 42. Anal entire. Yellowish, 

 with black irregular cross-bands ; light dorsal stripe, median 

 wdiite line on tail ; belly white ; usual head-markings. 

 Cochin-China. 



S. COCHINCHINENSIS, GtllV. 



Scales 21. Ventrals 216, subc. 47. Anal entire. Grey, 

 with about 12 black cross-bands; belJy white ; head- 

 marking black. 



