NOTES ON SNAKES FROM PERSIA. 



805-2 



Atractapis loilsoni ( X 2). 



sutures ; in contact with interna sal, postnasal (slightly), upper 

 praeocular, supraocular and frontal. Frontal. — Touches six shields. 

 The fronto-supraocular sutures rather the longest. Nasals. — Longer 

 than the prseoculars; in contact with the 1st and 2nd supralabial 

 and both prseoculars. Nostril peculiar, with a small scale inferiorly 

 inside the aperture; a sut ure runs from the nostril to the back of the 

 2nd supralabial. Proeoculars. — Two, elongate, and sub-equal. * 

 Postoculars. — Three decreasing in size from above downwards. 

 Temporals. — Two superposed anteriorly, the lower larger. Sup- 

 ralabials. — 7, the 3rd and 4th touching the eye ; 3rd, 4th and 5th 

 highest, the 7th longest, Infralabials.— 5. The 5th largest, quite 

 separated from the labial margin by small marginal scales, the anterior 

 of which also partially separates the 4th from the tip ; the 4th and 

 5th are very broad. Sublingual in contact with 5 infralabials. Eye 

 with round pupil. 



A well developed grooved fang. Colour. — Uniform tarry-black 

 above, plumbeous-black on the belly. 



1 have much pleasure in conferring Lieutenant Wilson's name 

 upon this species. 



* On the right side in one specimen a suture passes from the eye only partially dividing 

 the 3rd labial, and suggesting that the lower prseocular is derived from a division of 

 this shield. 



