68 



LACERTID^. 



millim. millira. 



Width of head 13 13 



From ond of snout to fore limb .... 25 29 



From end of snout to vent 70 77 



Fore limb 25 2Q 



Hind limb 41 44 



Tail 107 122 



S. France ; Spain and Portugal ; Morocco and Algeria. 



This species shows two extreme forms connected by inter- 

 mediate ones, viz. the typical form, with smooth or nearly smooth 

 dorsal scales, and the var. lineomacalatus, with all the dorsal scales 

 keeled. 



Lord Lilford [P.]. 



P. B. Webb, Esq. [P.]. 

 Dr. H. Gadow [C.]. 

 Mr. Fraser [C.l. 

 M. Lataste [P.]. 



M. Lataste [P.]. 



(Types of A. bellii.) 



10. Acanthodactylus tristrami. 



? Scapteira leiocerca, Gray, Ann. iV. Jf. i. 1838, p. 281. 



Zootoca tristrami, Gimth. Proc. Zool. Soc. 1864, p. 491 ; Tristram, 



Faun. Palest, pi. xvi. fig. 2. 

 Acanthodactylus dorsalis, Peters, Mon. Berl. Ac. 18G9, p. 62 *. 

 tristrami, Bouleng. Proc. Zool. Soc. 1881, p. 746, pi. Ixiv. fig. 1 ; 



Lataste, Ann. Mus. 'Genov. (2) ii. 1885, p. 482. 



Snout obtuse. Two supraoculars, the first and fourth being 

 broken up into small scales or granules ; subocular bordering the 

 lip ; temporal scales smooth ; front edge of the ear not denticulated. 

 Dorsal scales perfectly smooth, rhomboidal, flat, larger on the middle 

 of the back. Ventral plates much broader than long (the largest at 

 least twice as broad as long), in straight longitudinal and transverse 

 series ; 10 plates across the middle of the body. A median series 

 of broad pneanals, posterior largest. The hind limb reaches the 

 axilla or the collar. Digital denticulations very feebly developed, 

 as in A. vulgaris. The scales on the basal third of the tail, above 

 and inferiorly, perfectly smooth. Greyish, brownish, or reddish 

 above, sides ind limbs with round white spots ; back with black 

 spots, which may be very small and irregular, or large and in lon- 

 gitudinal series. 



Types (1056, 1057, 1058) examined. 



