16 Lacertidn'. 



Scales smooth or very oVitusely keeled ; 6 to S pliites in the 



collar ; 10 or li femoral pores on each side. L. boscie, 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, usually 

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

 small irregular plates usually present in tlie 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. .\p.\THYA, Mehely . Lower eyelid with a transparent disc formed 

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

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

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

 side ........ I,. citjipadocica,'\yeTU.,p. 3i. 



1. LATASTIA JOHNSTONII. 



Latastia johnstonii, Bouleug. Aud. it Mag. N. H. (7) xix, 1907. 

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



Eremias nitida (uou Giiuth.), Hewitt & Power, Tr. E. Soc. S. Afr. 

 iii, 1913, p. 166. 



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



Body moderately depressed. Head rather depressed, \h to If times 

 as loug as In-oad, its depth equal to the distance between the centre of 

 the eye aud the tympanum, its length 3f to 4J times in length to vent 

 in males, -IJ to 4j times in females ; snout obtusely pointed, as long 

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

 loreal regiou. Pileus li to 2j- times as long as broad, the shields 

 ofteu rather rugose. Neck as broad as the head. Hiud limb reach- 

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

 females ; foot \\ to li times as loug 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, H to 2 times as 

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



