92 Lai:ei-tldDf. 



Habit rather slender, body more or less depressed. Head l^ to 

 If times as long as broad, its length 3f to 4 times in length to vent, 

 its depth equal to the distance between the centre of the eye and the 

 tympanum ; a deep lanceolate concavity from the frontonasal to the 

 middle of the frontal ; snout pointed, often acutely, 1^ to 1* times as 

 long as the postocular part of the head, with sharp cauthus and 

 concave loreal region ; nasals often rather strongly swollen. Pileus 

 1| to 2^ times as long as broad. Neck as broad as or a little narrower 

 than the head. The hind limb reaches the ear or between the collar 

 and the ear, rarely between the ear and the eye, in males, the collar or 

 between the collar and the ear, rarely the ear, in females : foot li to 

 1^ times as long as the head ; fourth toe, from the base of the fifth, 

 1 to 1 J times as long as the head. Tail \\ to '2\ times as long as head 

 and body. 



Upper head-shields flat or convex, smooth, or feebly rugose in old 

 specimens. Suture between the nasals short or very short ; fronto- 

 nasal as long as broad or a little longer than broad, rarely a little 

 broader than long,* a little broader than the internarial space ; pre- 

 frontals longer than broad, the suture between them long or short, 

 according to the length of the snout ; frontal shorter than its distance 

 from the end of the snout, If to 2|- times as long as broad, rounded 

 or, more often, obtusely angular in front, narrow behind ; parietals as 

 long as broad or broader than long, outer border straight or concave ; 

 a small occipital often present behind the suture between the 

 parietals. t 4 supraoculars, the first as long as or shorter than the 

 second, nearlv wholly in contact with the first superciliary, + the 

 fourth smaller, often broken up or separated from the third by a series 

 of gi'anules ; one or two series of granules between the second and 

 third supraoculars and the superciliaries, which are 6 or 7, rarely 8, in 

 number, first longest. Anterior loreal much shorter than second; b, 

 rarely 4 or G, upper labials to hielow the centre of the eye ; subocular 

 sharply keeled below the eye, lower border rounded and resting on the 

 fourth, fifth and sixth upper labials, or angular and wedged in 

 between the fifth and sixth (rarely sixth and seventh or fourth and 



* Occasionally, but very rarely, longitudinally divided into two, as observed 

 by Stoliczka; the same author also notes the presence in some individuals of 

 one or t^\ o small shields between the prefrontals, and I find one such small 

 shield in a specimen from Sind and in another from Hissar. 



t In a young specimen from Hissar there is a well developed occipital, 

 separated from the interparietal by a small shield. 



t The second supraocular touches the prefrontal on both sides in a specimen 

 from Sind, and on one side in another from between Nushki and the 

 Helmand. 



