324 Lacerlida?. 



Olive-grey above ; head irregularlj spotted witli black ; a liglit 

 dorsolateral streak, bordered inward by an interrupted black streak 

 and outward by a series of large black ocelli with bluish white centres. 

 Low-er parts j'ellowish white. 



Measurements (in millimetres) : 



From end of snout to vent .... 62 



Length of head 

 Width of head . 

 Depth of head . 

 Fore limb 

 Hind limb 

 Foot 

 Tail 



15 

 10-5 



8-5 

 20-5 

 32-6 

 16 

 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. Miiller, 

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



29. EEEMIAS PEZEWALSKII. 



Podarces (Ereinias) jyrzewalshii, Strauch, Voy. Przewalski, Kept, 

 p. 43, pi. vii (1876). 



Podarces (Eremias) hessleri, Strauch, op. cit. p. 36, pi. v. 



Podarces {Eremias) brachydactyla, Strauch, op. cit. p. 41, pi. vi. 



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

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

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



Head and body rather strongly depressed. Head 1| times as long 

 as broad, its length o^ to 4f times in length to vent, its depth equal 

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

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

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

 feebly concave ; upper surface of snout and 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 1^ to 1|- times as long as head and body, more or less flattened at 

 the base, cylindrical or feebly compressed posteriorly. 



Upper head-shields flat, smooth ; nasals in contact behind the rostral, 



