618 JOURNAL, BOMB A Y NATURAL HISTORY SOCIETY, Vol. XVII. 



and frontal. Frontal, touches 6 shields, of which the supraoculars 

 make the largest sutures, about ^ larger than the parietals. Supra- 

 ocular, length subequal to frontal; breadth f frontal. Nasal, divided, 

 in contact with the ist and 2nd supralabials. Loreal, one, length 

 exceeds height. Prceoculars, two, the upper larger not touching the 

 frontal, lower above level of supralabials. Eye with round pupil. Post- 

 oculars, three. Temporals, three, the lowest smallest, and touching 

 the 6th and 7th supralabials ; the median touching the 7th supralabial. 

 Supralabials, 8 ; the 4th and 5th touching the eye. Anterior sublin- 

 guals, larger than the posterior. Posterior sublinguals, quite separated, 

 in some specimens subdivided into two, in contact with the 5th 

 and 6th infralabials (4th and 5th on right side in larger speci- 

 mens). Infralabials, 6, the 6th largest, and rather broader than the 

 posterior sublinguals. Scales, 2 heads lengths, behind head 19 ; 

 midbody!9; 2 heads lengths before vent 17. All keeled except last 

 row. Double apical facets very indistinct, but undoubtedly present. 

 Ventrals, 203 and 204 ; not angulate. Anal, divided. Subcaudals, 111 

 and 108. In the adult 103rd to 106th, 108th to 110th are entire, the 

 rest divided ; in the young 23rd to 25th, 81st to 85th and 88th to 90th 

 are entire, the rest paired. Colour, olive green, with five series of 

 indistinct spots dorsally, most pronounced in the forebody, and in the 

 young specimen fading behind, except the vertebral series which remains 

 quite evident. Last 3 rows with dusky mesial lines and the last row 

 bordered above and below with whitish. A dusky postccular streak, 

 and dusky posterior edges to the labials. Belly bluish-grey, each 

 ventral black basally. The young specimen is darker than the adult, 

 and the body is very depressed. 



Since writing the above I have received more than 20 more 

 specimens of this species from the same source which agree with the 

 above. Ventrals vary frcm 201 to 221. The subcaudals from 91 

 to 111. 



