324 Lacertid!e. 



Olive-grey above; head ii'regularly spotted witli liliirk: a liglit 

 dorsolateral streak, bordered iuward by au interrupted black streak 

 aud outward by a series of large black ocelli with bluisli white centres. 

 Lower parts yellowish white. 

 Measurements (in millimetres) : 



From end of snout to vent .... 62 



Length of head . . . . . . 15 



Width of head 105 



Depth of head 8-5 



Fore limb 205 



Hiud limb 32-5 



Foot 16 



Tail 79 



The above description is compiled from Strauch's and Bedriaga's 

 accounts of the unique male specimen from the Alashan Desert, 

 Mongolia, preserved in the Petrograd Museum. 



A second specimen is preserved in the Basle Museum (F. Midler, 

 Verb. Nat. Ges. Basel, vii, 1885, p. 702). 



29. EKEMIAS PRZEWALSKII. 



Podarces (Eremias) j)r2P»'i(?»7.-(';, Strauch, Yoy. Przewalski, Kept, 

 p. 43, pi. vii (1876). 



Podarces (Eremias) l-essleri, Strauch, op. cit. p. 36, pi. v. 



Podarces (Eremias) hrachydactyla, Strauch, op. cit. p. 41, pi. vi. 



Eremias jJTzeivalsliii, Bouleng. Cat. Liz. iii, p. 105 (1887); Bedriaga, 

 Wiss. Ees. Przewalski Eeis., Amph. Eept. p. 562 (1912) ; Bouleng. 

 Journ. Zool. Res. iii, 1918, p. 7. 



Head aud bod\' rather strongly depressed. Head Ih times as hmg 

 as broad, its length 3J to 4f times in length to vent, its depth equal 

 to the distance between the centre of the eye aud the tympanum ; 

 snout pointed, with the nasals not or scarcely swollen, as long as the 

 postocular part of the head ; cauthus rostralis strong, loreal region 

 feebly concave ; upper surface of snout aud anterior half of frontal 

 with or without a feeble concavity. Pileus twice as long as broad. 

 Neck as broad as the head or a little broader. Hind limb reaching 

 the collar in males, the axil or the shoulder in females ; foot as long 

 as the head or a little longer ; toes moderately long, not compressed. 

 Tail IJ to 1 J times as long as head and body, more or less flattened at 

 the base, cylindrical or feebly compressed posteriorly. 



Uj)per head-shields flat, smooth ; nasals in contact behind the rostral. 



