86 Lacertidie. 



Measurements (in millimetres) : 



Prom end of snout to vent 



„ „ ,, fore limb 



Length of head . 

 Width of head . 

 Depth of head . 

 Fore limb . 

 Hind limb ^ 

 Foot . 

 Tail . 

 1. 3*, Abukir. 2. 9 > -A-lexandria. 



Yar. ASPEE, Audouin. 



Distinguished ])y larger dorsal scales. Head likewise varying in 

 shape, the snout exceptionally rather pointed and \\ times as long 

 as the postocular part of the head.* The hind limb reaches between 

 the collar and the ear or between the ear and the eye, very rarely 

 the eye, in males, the shoulder, the collar or tietween the collar and 

 the ear in females. 



The first and fourth supraoculars usually entiref; rostral excep- 

 tionally in contact with the frontonasal J ; a small shield sometimes 

 present between the prefrontals § ; exceptionally 5 or 6 upper labials 

 to below the centre of the eye. 



22 to 32 (usually 23 to 28) gular scale.s in a straight line. 7 to 

 12 collar-plates. 



Dorsal scales abruptly differentiated from the laterals, in 12 to 

 18 longitudinal series in the middle of the body, and 8 to 14 (usually 

 10 to 12) between the hind limbs, the posterior often nearly as large or 

 but little smaller than the basal caudals ; 23 to 38 (usually 25 to 35) 

 scales across the middle of the body. Ventral plates exceptionally 

 in 8 or 12 longitudinal series. 15 to 27 (usually 17 to 24) femoral 

 pores on each side. 17 to 24 lamellae under the fourth toe. 18 to 

 22 scales in the fourth or fifth caudal whorl. 



Young with 6, 5, or 4 white streaks on the nape, 5 or 4 on the 



* Two males, from Tunisia and Gliardaia, may be regarded as extremes ; 

 their measurements are here ffiven. There are also considerable differences 

 between specimens from the Hadraraut. 



t Divided into 2 or 3 shields in 17 specimens only, from Aden, Lahej, Abian 

 Country, Haithalhim, Hadramut, Giza, Suakin, Laghouat, and Bou Guelfaiu. 



\ Male from Aden and male from Haithalhim. 



§ Single specimens from Sinai, Cairo, Giza, Gobel Maryut, Luxcr, Suakin, and 

 Annesley Bay. 



