Eremias. 339 



spots ; sometimes the vertebral liue is lighter than the rest of the 

 ground-colour, which varies from buH to grey. There are also 

 specimens without ocelli. Thus, a female from Chefoo has only two 

 more or less interrupted whitish streaks on eacli side, bordered by 

 larger dark brown spots, and a male from the same locality resembles 

 very closely the type of E. hreiicMeyi in its coloration, a continuous 

 white streak extendiui;' from below the eye to the groin, edged above 

 by a dark brown baud, which is continued on the tail; a, second 

 (dorsolateral) white streak above, continuous on the neck, broken up 

 into ocellar spots on the body. Other specimens are intermediate 

 between these striated examples and the more frequent type with 

 nothing but ocelli. Lower parts white. 

 Measurements (in millimetres) : 



From end of snout to vent . 



„ ,, „ fore limb 



Length of head . 

 Width of head . . . , 

 Depth of head . 

 Fore limb . 

 Hind limb 



Foot . . . 



Tail . 

 L (J, Chefoo. 2. 9, Chefoo. 3. c? , Wei Hai Wei. 4. ? , N. 

 China. 5. ? (var. brenchleyi), Mongolia (Paris Museum), 



The sexes are difficult to recognize externally in this species. The 

 males have a larger head and a rather shorter body, but the tail 

 is not or but scarcely swollen at the base and the femoral pores are 

 not larger than in the females. 



Habitat. — Manchuria, Corea, Mongolia, Northern China. 



Var. BEENCHLEYI, Giinther. 



Only about a dozen specimens of this form are known to exist in 

 collections, and it is therefore difficult to decide whether it should 

 rank as a variety of E. argus or as a distinct species. Considering 

 the characters which have been adduced in favour of its specific dis- 

 tinction as either too slight or as occurring also in annectant specimens 

 of E. argus, I prefer, for the present, to treat it as a variety. 



The latest definition is that given by Bedriaga (I.e.), and is here 

 repeated, the structural characters from his synopsis (p. 505), the 

 coloration from his diagnoses (pp. 645 and 656) : — 



