Psammodromus. 169 



than the others, all in contact with the snpi-aoculars. Kostral narrowly 

 separated from the nostril ; a single postnasal ; anterior loreal shorter 

 tlian second* ; four, rarely five or three f upper labials anterior to the 

 subocular, which is much narrower beneath than above, and the lower 

 portion of which is often detached as one or two additional laltials 

 separating it from the oral border ; one, two or three enlai-ged upper 

 temporals often present + ; the other temporal scales irregular and 

 unequal in size, usually with a distinct tympanic shield. Lower eyelid 

 without vertically enlarged scales in the middle. 



Gular scales large and flat, larger and more imbricate towards the 

 collar, which is rather feebly or very feebly marked, except on the 

 sides, aud formed of G to 10 rounded scales ; gular fuld usually moi'e 

 or less distinct, at least on the sides ; 15 to 22 gular scales in a 

 straight median line, including the collar. 



Scales on back acutely pointed or shortly mucronate, with strong- 

 straight keels, on sides gradually more obtuse and losing the keels, 

 gradually passing into the ventrals, which are broader than long, and 

 hexagonal, those of the second series from the median line broadest, 

 and form straight longitudinal and ti'ansverse series. 24 to 36 scales 

 across the middle of the body. Ventral plates in 6 longitudinal and 

 24 to 31 transverse series (24 to 30 in n)ales, 27 to 31 in females). 

 Preanal plate moderate or rather large, bordered by one or two senii- 

 cii'cles of small plates. 



Scales on upper surface of tibia rhombic and keeled. 9 to 14 

 femoral pores on each side,§ usually 10 to 12. 16 to 23 lamellar 

 scales under the fourth toe. 



Caudal scales in nearly equal or alternately somewhat longer and 

 shorter whorls, upper strongly keeled, pointed, and more or less 

 distinctly mucronate; 18 to 24 scales in the fourth or fifth whorl 

 Ijehind the postanal granules. 



Grrey, olive, coppery brown or yellowish brown above, usually with 

 white or yellowish and black markings in the form of spots, streaks, 

 or ocelli. Primarily, there are four white streaks on the back and 

 three on each side ; the outer dorsal, or dorsolateral, starting from 

 the outer border of the parietal shield, and the middle lateral, starting 

 from the upper lip, are the most constant ; the upper lateral, starting 



* Absent in a female from Marseilles. 



t 5 on one side in two males from Seville, 3 on both sides in a male and in a 

 female from the same locality. 



X Anterior ujiper temijoral in contact with the fonrth sui^raocular in a male 

 from Seville, in a male and in a female from Lisbon, in a female from Algarve. 



§ Up to 15 according- to Duges. 



