6, PSAMMODROMTTS. 49 



less strongly or obtusely keeled tubercles. 10 to 12 femoral pores 

 on each side. Tail once and a halt' to once and three fourths as 

 long as head and body. Olive or bronzy brown above, with two 

 yellowish streaks along each side, bordered with small black spots ; 

 sometimes a light vertebral band ; lower surfaces yellowish. 



6. ?. 



millim. ruillim. 



Total length 93 101 



Head 10 9 



Width of head 7 6-5 



From end of snout to fore limb .... 15 14 



From end of snout to vent 38 40 



Foro limb 14 12 



Hind limb 21 18 



Tail 55 61 



Algeria. 

 a. $. Lambesa. M. F. Lataste [E.] (One of the types.) 



3. Psammodromus microdactylus *. 



Algira (Zerzumia) microdactjla, Boetfg. Zool. Anz. 1881, p. 571, and 

 Abh. Senck. Ges. xiii. 1883, p. Ill, pi. i. fig. 2. 



The suture between the rostral and the first labial falls below the 

 centre of the nostril. No gular fold ; no trace of a collar. 28 or 

 30 scales round the middle of the body, Ventrals broader than 

 long, the median and outer series narrower than the two others. 

 The adpressed hind limb reaches, or nearly reaches, the axilla ; foot 

 as long as the distance between the arm and the centre of the 

 ej''e ; digits inferiorly with a double series of strongly but obtusely 

 keeled tubercles. 11 to 13 femoral pores on each side. Tail once 

 and two thirds as long as head and body ; upper caudal scales more 

 strongly keeled than the dorsals. Olive above, with small black 

 spots ; lower surfaces greenish yellow. 



millim. millim. 



Total length 117 119 



Head 11 11 



Width of head 7-5 7 



From end of snout to fore limb .... 17 17 



From end of snout to vent 43 46 



Fore limb 15 15 



Hind limb 22 22 



Tail 74 73 



Morocco. 

 a. § . Tangiers, M. H. Vaucher [C], 



* Besides the specimen in the Collection, this description is taken from the 

 types in the Senckenberg Museum. 



VOL. III. E 



