\Q Lacertidn'. 



Scales smooth or very olitusoly keeled ; 6 to 8 plates in the 



collar ; 10 or 11 femoral pores on each side. L. boscx, Bedr., p 22. 



Scales feebly but very distinctly keeled ; 5 to 8 plates in the 



collar ; 8 or 9 femoral pores on each side. L. wachei, Wern., p. 24. 



2. 52 to 80 scales across the middle of the body, visually 

 55 to 65, more or less strongly keeled ; a group of 

 small irregular plates usually present in the middle 

 of the pectoral region ; 5 to 16 femoral pores on 

 each side ..... L. longicaudata, Reuss, p. 25. 

 B. Dorsal scales larger than the laterals, gradating into the 

 caudals, 45 to 52 across the middle of the body ; 7 to 11 

 femoral pores on each side . . . L. carinata, Peters, p. 32. 



II. Apathya, Mehely. Lower eyelid with a transparent disc formed 

 of 6 to 8 scales : frontal not grooved ; subdigital lamellas uni- 

 carinate ; dorsal scales granular and smooth, 67 to 74 across 

 the middle of the body ; 19 to 25 femoral pores on each 

 side ........ L. cappadocica, Wern., p. 34. 



1. LATASTIA JOHNSTONII. 



Latastia johnstonii, Bouleiig. Auu. & Mag. N. H. (7) xix, 1907, 

 p. 392 ; Steruf. Mitt. Zool. Mus. Berl. v, 1911, p. 417. 



Eremias nitida (uou Griinth.). Hevritt & Power, Tr. R. Soc. S. Afr. 

 iii, 1913, p. 156. 



Latastia kirdwelU, Bouleug. Tr. R. Soc. S. Afr. v, 1919, p. o9. 



Body moderately depressed. Head rather depressed, 1| to If times 

 as long as broad, its depth equal to the distance between the centre of 

 the eye and the tymjDanum, its length 3f to 4|- times in length to vent 

 in males, 4^ to 4^ times in females ; snout obtusely pointed, as long 

 as postocular part of head, with sharp canthus and vertical, grooved 

 loreal region. Pileus ll- to 2r times as long as broad, the shields 

 often rather rugose. Neck as broad as the head. Hind limb reach- 

 ing the shoulder or the collar in males, the axil or the shoulder in 

 females ; foot I-3- to Ih times as long as the head ; toes slender, com- 

 pressed. Tail 2 to 2f times as long as head and body. 



Nostril pierced between 3 or 4 shields, the nasal sometimes forming 

 a narrow rim separating it from the first upper labial ; nasals forming 

 a suture behind the rostral, the suture i to f the length of the fronto- 

 nasal, which is much broader than long and broader than the inter- 

 narial space ; prefrontals forming a median suture, sometimes with a 

 small azygos shield between them ; frontal as long as or a little shorter or 

 a little longer than its distance from the end of the snout, 1 h to 2 times as 

 long as broad, rounded in front, much narrower behind, grooved along 



