64 Zacei-ticbe. 



than long, outer border straiarht or concave. First supraocular usually 

 divided into two, sometimes entire,* rarely disintegrated into several 

 small ihields and granules,-!- as lon^ as or a little shorter than second ; 

 fourth alwavs replaced by granules, with or without a small shield : 

 one or two series of granules between the supraoculars and the super- 

 ciliaries, sometimes three behind, some of the granules usually 

 penetrating between the first supraocular and the first superciliary ; 

 f^ or 7, exceptionally -5 or •:, superciliaries, first longest and in contact 

 with the first supraocular. Anterior loreal!: much shorter than the 

 second : 4 upper labials, rarely 3 or -5, anterior to the centre of the 

 eve; subocular sharply keeled below the eye, usually wedged in 

 between the fourth and fifth upper labials, rarely separated from 

 the oral border by a small additional labial or narrowly entering 

 it.§ A larcre upper temporal, followed by a small one ; temporal 

 scales granular, convex and smooth, upper very minute, lower large : 

 tvmpanic shield sometimes present, usually absent ; 4 or -o sh -jrt. 

 rounded or obtusely pointed lobules form a denticulation in front of 

 the tympanum. 



o pairs of chin-shields, the 3, or rarely 2, first in contact in the 

 middle; 23 to 34 gular scales in a straisrht line between the symphysis 

 of the chin-shields and the median collar-plate, juxtaposed in front, 

 gradually enlarged and imbricate towards the collar ; gular fold absent 

 or slightly indicated. Collar free or attached in the middle, curved or 

 angular, composed of 10 to 13 plates. 



Scales granular and smooth, convex or flat, sometimes snbimbricate 

 and obtusely keeled on the posterior part of the back, a little smaller 

 on the upper part of the -ides, lar:.'est towards the ventrals, into 

 which they sometimes gradually merge : o-2 to 68 scales across the 

 middle cf the body. Tentral plates in regular longitudinal and 

 straight or somewhat angular transverse series, all except the outer- 

 most broader than long, but not twice as broad as long, or only a 

 fevr so broad, the series across the middle of the body composed of 1-2, 

 rarely 14, plates; 27 to 32 transverse sf-rif-s. 1 to 4, usnallv 3, 

 unpaired preanal plates, the one in front of the vent usually broader 

 than long. 



1.5 to 24 femoral pores on each side, the two series meeting or 

 narrowly separated in the middle. Digits with 3 series of scales, 



* In 2 specimens from Alexandria, in 1 from Jlarrut. 

 f One specimen from Alexandria, another from JIarvut. 

 X Absent on both sides iu one specimen from Alexandria, on one side in 

 another. 



§ In 1 male from Alexandria, in 2 females from Marynt. 



