58 Lacerfidii'. 



Acanthodadylus savujin/i, Bouleng. Cat. Liz. iii, p. 6S (1887), and 

 Bull. Soc. Zool. France, 1918, p. 149. 



Acanthorlacti/lvs pardaJis, part., Anders. Zool. Egypt, Kept. p. 155 

 (1898). 



AcantJioducfylus Kaviynyi, var. oranensis, Doumergue, Erp. Oran. 

 p. 174, pi. xii, tigs. 1-3 (1901). 



Haliit rather slender, Jiody feebly depressed. Head U to 1§ times 

 as long as broad, its length 4^ to 4\ times in length to vent, its depth 

 equal to the distance between the anterior corner or the centre of 

 the eve and the tvmpanum ; a deep lanceolate concavity from the 

 frontonasal to the middle of the frontal ; snout pointed, as long as 

 or a little longer than the postocular part of the head, with rather 

 sharp canthus and feebly concave loreal region ; nasals feebly swollen. 

 Pileus twice as long as broad. Neck as broad as or a little narrower 

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

 collar and the ear in males, the shoulder or the collar in females ; 

 foot 1^ to If times as long as the head ; fourth toe, from the base of 

 the fifth, a little longer than the head. Tail 1^ to 2 times as long as 

 head and body. 



Upper head-shields convex, rarely slightly rugose in the adult. 

 Suture between the nasals J to i the length of the frontonasal, which 

 is as long as broad or a little broader than long, a little broader 

 than the internarial space and frequently divided into two by a 

 median cleft* ; nearly constantly two azygos shields separate the 

 prefrontals,t which are longer than broad ; frontal as long as or a little 

 shorter than its distance from the end of the snout. If to 2 times 

 as long as broad, rounded, truncate, or notched in front, narrow behind ; 

 parietals as long as broad or a little longer than liroad, often 

 forming a very short suture or separated liy a series of granules 

 behind the interparietal, upper liorder sti-aight or concave. + First 

 and fourth sujaraoculars entirely broken u^j into a great number 

 of granules or of granules and small shields ; second supraocular as 

 long as or slightly shorter than its distance from the second loreal ; 

 2 or 3 series of granules, rarely 1, between the supraoculars and the 

 superciliaries, which are 6 or 7, rarely 5, in number, the first the 

 longest. Anterior loreal shorter than the second ; 4 upper labials 

 anterior to the subocular, which narrowly borders the mouth. A large 



* Divided into three in one specimen. 



t In 2 young specimens there is a single unpaired shield and the prefrontals 

 are in contact behind it ; there are 3 impaired shields in one specimen. 



if Doumergue is mistaken in stating (p. 17.5i "Cotes lateraux des parietales- 

 droits." The}' are often strongly concave in the specimens received from him. 



