Acatithodacfylns. 65 



feebly denticulate on each side, usually as iu A. vidgarii^, sometimes a 

 little more distinctly ou the outer side of the fourth toe; 16 to 21 

 uuicarinate, rarely tricarinate lamellae under the fourth toe. 



Upper caudal scales very oblique and diagonally keeled, those at the 

 base broader than long and often very obtusely keeled, lower smooth 

 iu the basal part of the tail ; 20 to 26 scales iu the fourth or fifth 

 whorl. 



Young from Egypt are still uukuowu,* but we may surmise from the 

 markings of the adult that they have 8 pairs of light longitudinal 

 streaks, with occasionally an unpaired one ou the nape, and that the 

 tail is probably not red, as uo trace of that colour is ever seen in the 

 adult. 



Adult grey, greenish grey, or fawn-colour above, with Wackish 

 spots or a brown-black network and four dorsal and one or two lateral 

 series of round or oval longitudinal series of white, yellow, or orange 

 spots ; sometimes traces of a median light streak on the nape ; limbs 

 with round light spots. Lower parts white, throat, breast and sides of 

 belly sometimes sjjeckled with grey. 

 Measurements (iu millimetres) : 



From end of snout to vent . 

 „ ,, ,, fore limb . 



Length of head ..... 



Width of head 



Depth of head ..... 



Fore limb ...... 



Hind limb ...... 



Foot 



Tail 



The specimens from Palestine are referable to the typical form 

 from Egypt, differing only in the average larger size,t by which, along 

 with the rather stout habitus, they approach the var. bedriagH'. The 

 ventral plates are identical, the dorsal scales are smooth and convex ; 

 the first supraocular is entire iu 3 specimens, bisected in 2, and broken 

 up into 8-10 scales in one ; the subocular liorders the lip in one 



* This is indeed very remarkaVile. Lataste, who failed to obtain any young 

 in Algeria, ascribed the fact to the early season at which he collected. Anderson 

 met with the same failure in Egypt, and he suggested the paucity of eggs laid 

 by the female as a possible explanation why the young are so seldom observed ; 

 but surely there must be at least as many young as adults in existence, and 

 A. pardalis is quite abundant in the localities it frequents. 



t Peracea records a male specimen measuring 81 millimetres from snout 

 to vent. 



VOL. II. 5 



